3 falls under the “Authorization” category. eCommerce Travel Crypto Gaming SaaS Gambling Ticketing. In that way, winning one dispute may help prevent the next chargeback to come after it. The existing 22 chargeback reason codes will be replaced by new reason codes and grouped into 4 categories: 1. Reason codes are alphanumeric codes that provide the justification for granting a chargeback. Reason codes differ by card brand (Visa, Mastercard); a complete list can be found here. Commonly selected actions include Dispute/Reverse Chargeback or Accept Chargeback. Used when: The merchant processed the transaction more than once, causing the cardholder to be debited twice for the same transaction or the cardholder paid for a transaction using one form of payment and was There are over 80 unique return codes, and each one represents a different type of return. The scammer claims to be from the bank, and is seeking to confirm a specific transaction, which the victim denies. P01 - Unassigned Card Number (All other countries 4523) Reason. com Europe. Card issuers and card networks deem certain chargeback codes to be nearly indisputable by merchants, and as a result, a merchant can be charged a fee of up to $500 by card networks for submitting a dispute of such chargebacks. The card provider then processes this information and determines the. And according. the Chargeback. Reason Code 02. The reason_code will be one of the following values: chargeback_reimbursement: The gross shows positive if the chargeback was resolved in the seller's favor, and the seller gets a refund. . This chargeback reason code can be avoided by ensuring that returns are processed promptly and accurately, and that the customer is informed of any credits issued. Chapter 2 1. The networks say merchants have a 45-day response window, but the Chase credit card chargeback time limit for merchants is 39 days. Learn about chargeback dispute behavior among UK and US consumers. Unfortunately, it is pretty challenging to prevent friendly fraud. ” -This reason code is. Chargeback reason American Express reason code Discover reason code Mastercard reason code Visa reason code; Cancelled subscription: C28: NF: 4841: 13. Each card issuer follows their own standards for defining reason type, code and its format. 0 only applies to reason code 10. Knowledge of such codes can help businesses file a chargeback dispute successfully. There are no format changes to the sales file specification; there are additional values added to the sales file to designate chip card transactions. 0) Digital usage logs; ContractsStep 1: The cardholder disputes a charge. Additionally, one clearing transaction. Only an issuer can initiate the chargeback process. For each reason code, a definition is provided along with the merchant’s actions—or failure to act—that may have caused the chargeback,Visa is planning to shake up the chargeback process with new compelling evidence rules for fraud disputes with Reason Code 10. 2. Mastercard uses reason code 4842 for late presentment chargebacks, but the conditions are considerably more complex. Some crucial examples of specific documents used as compelling evidence are as follows: Delivery confirmation of the order; Conversations with the customer; Verification codes (AVS, Authorization, Card Security Code, 3D Secure 2. The most comprehensive guide to chargeback reason codes. Typically, cardholders file a chargeback if they were not informed of dynamic currency conversion fees or were not given the option to complete the sale in their local currency. Consider using all the tools available to you—including Visa Secure, card security code (CVV2), and Address Verification Service (AVS). 6, "Chargeback Reasons" Added requirements for each Chargeback Reason code. In short: capture is the point at which you get paid for a sale. This extra step can be frustrating for Card Members and lead to lost sales. Specifically, it has introduced a Compelling Evidence requirement for disputes falling under the Visa CE/30 chargeback reason code. So don’t spend another second worrying about chargebacks. 3. A chargeback reason code is a 2-to-4-digit alphanumeric code provided by the issuing bank involved in a chargeback, which is meant to identify the reason for the dispute. Below you will find the reason codes for the dispute events Chargeback, Request for Information (RFI), and Notification of Fraud (NOF). There are two types of invalid chargebacks. The chargeback initially results in the debit or credit card charge being reversed and the funds that you received for the payment being returned to the customer. Chargeback reason codes have changed. Response to retrieval request: Based on the information provided, the acquiring and issuing banks resolve the dispute, if possible. One of three things will happen: The issuer rules in your favor: Your representment case validates the original transaction. In this instance, the cardholder claims a misrepresentation of the order they received, such as a defect, damage, counterfeit, or incomplete merchandise. The program focuses on small ticket and digital goods merchant fraud transactions. A reason code is an alphanumeric code selected from a predetermined list by the issuing bank to indicate the reason the cardholder gave for requesting a chargeback. If the cardholder’s bank accepts the dispute, they will reverse the transaction, taking the funds back from the merchant and returning them to the cardholder. With that said, you still need to understand the reason codes with any chargebacks from Amex. UA05 Fraud – Chip Counterfeit Transaction. The tickets were held at the box office, and no signature, swipe or imprint of the card was obtained when the tickets were released. ’Mastercard issuers use merchant advice codes to respond to authorization requests, and as a communication tool with merchants regarding a cardholder's account. Also, remember that the time frame for your response includes any processing required by the acquirer. Apparel retailers and suppliers must proactively address chargeback issues. Code description a01 charge exceeds authorization. By entering your email, you agree to receive marketing emails from Shopify. 6: Duplicate processing/Paid by other means. These codes explain the reason why the chargeback was filed, and the reason the chargeback was approved. P01. Each bank card network has its owner list of reason codes banks must prefer from. Reason Code 03. P03 – Credit Processed as Charge. 0 initiative to update compelling evidence requirements for dispute reason code 10. Once you receive this notification, you have 11 days to. Any time. As we touched on earlier, chargebacks can happen due to technical errors. United States. Card networks send these codes to merchants to indicate why a chargeback has been filed. The agency must provide this documentation to Vantiv (via mail, fax, online/scanning) within 30 calendar days after the report date on the Visa/MasterCard. P01 Unassigned Card Number . Spot these types of chargebacks using. When a customer decides to dispute a charge made to their debit or credit card, it is referred to as a chargeback. The business has the chance to refute the chargeback. Category. The good news is that most of these invalid claims are disputable by the merchant. 0 represents the first rules change of its kind that specifically provides merchants with the opportunity to reverse the fraud status applied to a transaction associated by reason code 10. 1 Chargeback reason American Express reason code Discover reason code Mastercard reason code Visa reason code; Cancelled subscription: C28: NF: 4841: 13. 1. EMV Liability Shift Counterfeit Fraud. A chargeback reason code is a 2-to-4-digit alphanumeric code provided by the issuing bank involved in a chargeback, which is meant to identify the reason for the dispute. Chargeback Reason Codes List for Mastercard Chargeback Code Chargeback Reason 4801 Requested Transaction Data Not Received 4802 Requested / Required Information Illegible or Missing 4807 Warning Bulletin File 4808 Requested / Required Authorisation Not Obtained 4812 Account Number Not on File 4831 Transaction Amount Differs 4834 Duplicate. Tap “>” beside the charge to see an accurate timeline view of the disputed transaction. CHARGEBACK REASON CODESCode 13. Check with the issuing banks to determine what time limits may apply to you. . Chargeback Codes (continued) C04 Goods/services returned. P08 – Duplicate Charge. Typical chargeback reason codes are: DA: Disputed amounts. If the cardholder is using the chargeback process incorrectly — a practice commonly referred to as “friendly” fraud — the information provided to the bank. Additionally, Amex uses a fifth "Miscellaneous" category. Reason. Subsection5. Get your complete guide to the new Visa reason codes, including all the detailed information, chargeback time limits, and other important information you need. A chargeback filed due to buyer’s remorse is a prime case of friendly fraud; a situation where a customer side-steps a return policy in order to gain an illegitimate refund. Visa has recently announced changes to its chargeback rules. Additionally, Amex uses a fifth "Miscellaneous" category. Each network’s reason codes, however, can beLike your chargeback-to-transaction ratio, card networks also monitor your fraud-to-sales ratio. Each reason code has certain standards of proof and evidence associated with it that determine whether the chargeback is valid or not. Code. 2 chargebacks are frequently caused by customers forgetting to cancel a subscription before the next billing and then going to their bank to try to get their money back. to research a chargeback or reversal case, which is related to an authorization or fraud related chargeback reason code. 36. 4 applies to eCommerce, whereas code 10. Example: 25. In-Depth Analytics Name which real reasons for transaction disputes and solve issues along their source. 3? Visa chargeback reason code 13. The merchant authorizes Amex to process a chargeback for the transaction in question. Field name: reasonCode. While the format of chargeback reason codes. If the conflict can be settled, the acquiring and issuing banks do so. Include any terms relevant to the transaction, including return, cancellation and. chargeback management with an easy to use online system. P01 P03 P04 P05 P07 P08 P22 P23 R03 R13 Select a code to see the details QUICK REFERENCE Time to respond: 20 days from date of chargeback. Visa’s process introduces four dispute categories and associated numerical labels (Fraud – 10, Authorization – 11, Processing Errors – 12, Consumer Disputes – 13) under which the renamed reason codes will be placed. Spot these types of chargebacks using the below reason codes. WEX began issuing chip cards in Q4, 2020. 4859 Addendum, No-show, or ATM Dispute. It’s important that you include a copy of your customer terms and conditions in order to prove that the customer knew what to expect from the outset. Download this sample Chargeback Rebuttal Letter. 2 – EMV Liability Shift Non-Counterfeit Fraud 10. Cardholders can dispute digital goods transactions of $25 or less (or the equivalent in local currency) if certain purchase controls were not put. chargeback_settlement: The gross shows negative if the chargeback was resolved in the buyer's favor, and the funds return to the buyer. A chargeback is the potential outcome of a disputed credit or debit card transaction. American Express is incentivized to keep their customers happy. Chargeback rights are guaranteed by law. The other two chargeback reasons can be traced to very obvious causes — criminal activity and merchant mistakes. Amex uses the same four main categories as Visa to organize its reason codes: Authorization, Card Member Disputes (which Visa refers to as Consumer Disputes), Fraud, and Processing Errors. Reason codes are alphanumeric strings of text provided in a chargeback notification as a means of explaining the cause for the dispute. Time Limit (Acquirer/Merchant) 20 Days. Visa Chargeback Reason Codes. PCI DSS v3. Chargeback Prevention Alerts Resolve customer disputes quickly before they become chargebacks. 102. As soon as a customer requests a chargeback, their bank will reach out to the business’s bank and give them a heads-up that the chargeback has been requested. Credit card chargeback reason code: Type: Varchar; Unique: No; Blanks: Yes; Max length: 64 characters; Unique identifier which distinguishes the nature/reason of credit card chargeback reported. The newer system is designed to. Chargeback reason codes. related Chargebacks (Reason Codes 4837, 4840, 4849, 4863, 4870, and 4871), Chip/PIN Liability Shift (Reason Code 4871) section. A chargeback can happen when a customer initiates a transaction dispute. What is the chargeback representment process? When faced with a chargeback representment, you should take these steps. Chargeback reason code 10. This webhook contains: pspReference: Adyen's unique reference associated with the payment request. Visa ® has launched the CE 3. Reasons a customer may initiate a chargeback include: Ordering a product and not receiving it. Maestro. The ECI value tells you what to do next in a 3DS transaction — proceed, reject the purchase, or try again. Get your complete guide to the new Visa reason codes, including all the detailed information, chargeback time limits, and other important information you need. Acquirer after the 3-month Workout Period, as described in “Excessive Fraud Activity Notification - U. ONE reason code is an alphanumeric code selected from a fixed list by the issuing bank to indicate the reason of cardholder gave for requesting a chargeback. 7: Defective goods and services: C32: RM: 13. Card Brand Code Description Days to Dispute. There is no Wells Fargo dispute charge for cardholders with a legitimate reason to file a dispute. Chargeback Reason Code. Please note that each card network (MasterCard, VISA, American Express, etc. There are multiple situations in which this can occur. Chargeback reason code; Delivery confirmation (if the item was delivered) Accurate transaction dollar amount; When writing a winning chargeback rebuttal letter, it’s important to include one more vital component: the fact that you’re disputing the charge. US and Canada. In a traditional payment system, the customer authorizes a payment, and then the merchant submits it for clearing to the issuer—effectively requesting to “pull” money from the customer’s account. Visa chargebacks can be a major inconvenience for merchants. 4 Other Fraud Card Absent. Visa - 10. 4841 Canceled Recurring or Digital Goods Transactions. Reason Code 53 re-presentments must be. 1 Different workflows Disputes will be routed in two different workflows, called Allocation and Collaboration. Fight; Prevent;. When the customer disputes a charge, the issuing bank then begins the chargeback process. Select a tab to see the possible reason codes for each dispute event category, divided by scheme. ACH Return Codes. The number of in-person fraud attacks attempted in the UK has dropped by 69% since 2004. Chargeback reason codes will usually provide specific information about what kind of evidence is needed to get the chargeback reversed. Credit Processed as Charge. Having a Lax Attitude Toward Industry Rules & Regulations. 4% of all transactions worldwide are made with EMV chip cards, which has led to a precipitous drop in card-present fraud. Intelligent Dispute Responses Win better disputes and achieve higher ROI with customized struggling regulations, optimized responses, and economically batch. Statistics from Juniper Research estimate that online sellers will have lost $130 billion to online fraud between 2018 and 2023. Once filed, the merchant generally has 20 days to respond. Reason Code 81: Fraud. Reason Code. MCC 5815 — Digital Goods: Media (Books,. This can be a little confusing; Visa uses the term “dispute” in place of the term “chargeback. Charge Processed as Credit. 4853 – Cardholder Dispute – Credit Posted as a Purchase. Banks, however, categorize chargebacks or disputes depending on the card used when a chargeback occurs. With the right compelling evidence,. The reason for the dispute was false or inaccurate. A customer payment dispute, more commonly called a “chargeback,” happens when a cardholder disputes (challenges) a payment card transaction and asks the card-issuing bank to reverse it. 5158. Mastercard Chargeback Reason Code 70: Chip Liability Shift. Visa, MasterCard, and American Express all list compelling evidence by reason code. Why Midigator; Feature. Try Shopify free for 3 days, no credit card required. It’s typical to see fraud chargebacks roll in 2-3 months after the initial charges took place. Discover uses unique codes to explain those reasons to merchants. If you fulfilled the cancellation request but the cardholder continued to use the services, provide documentation that proves the charge covers services used after the cancellation. While creating the reason codes, the bank asks the customer about the reason for. Fraudulent Activity. On the other hand, PayPal—which can serve as a credit card. Dispute Condition Description Dispute Condition Code Category Code Category Code Description; EMV Liability Shift: 10. Chargebacks. 3: Goods or services were not as described: C31: RM: 13. 4 Fraud – Card-Absent Environment. You can learn more about each one by visiting the Mastercard Chargeback Guide. Time limits vary by card network and reason code, though, so you should look into the specific terms tied to the reason code. Chargeback reason code. Learn the details, the cause, how to respond and how to prevent American Express Reason Code P01 Unassigned Card Number . Chargeback Reason Codes; Payment Industry Glossary; Frequently Asked Questions; Book a Demo. the Chargeback. Updated Visa Reason Codes. F02. 4. Dubbed. Chargeback reason codes are codes used to categorize the reason for the dispute. Chargeback reason American Express reason code Discover reason code Mastercard reason code Visa reason code; Cancelled subscription: C28: NF: 4841: 13. Code Reason; 01: Requested Transaction Data Not Received: 02: Requested item illegible: 07: Warning Bulletin File: 08: Requested/Required Authorization Not Obtained: 12: Account Number Not on File: 31: Transaction Amount Differs: 34:Merchants who believe they have received an invalid chargeback under reason code 12. EFM MONTHLY CRITERIA NUMBER OF E-COMMERCE TRANSACTIONS FRAUD CHARGEBACK AMOUNT FRAUD CHARGEBACK RATIO BASIS POINTS (BPS) 3DS UTILIZATION (EMV 3DS + DATA. We also included the reason code descriptions and an indication of when the allowable time frame begins. This will be referenced in the chargeback notice you received. . And according to The True Cost of Fraud report by LexisNexis, businesses end up paying $3. If they think it does, they assign it a reason code and credit the funds back to the cardholder’s account. Because it’s so easy for customers to initiate a chargeback, retailers are bound to experience a request at. Here are some chargeback reason codes by card type. CB CD (chargeback reason code) Enter the code that identifies the reason that a chargeback was generated for an invoice during receipt entry. 1. Scenario 2. without a reason code will be assigned a default code of 1. Amex Dispute Codes Amex uses the same four main categories as Visa to organize its reason codes: Authorization, Card Member Disputes (which Visa refers to as Consumer Disputes), Fraud, and Processing Errors. The goal is to reduce ‘friendly’ fraud chargebacks, helping sellers protect more of their hard-earned revenue. 6. Goods / Services Damaged or Defective. 1 Quick Reference Lead. All ACH return reason codes consist of the letter “R” followed by two. While the updates have been published, they do not go into effect until Oct. Visa assesses the following fines, as specified in the table below, to a U. We used 3DS to authenticate this purchase and obtained AVS and CVV match codes at authorization (page 2). Chargeback time frames - A specific period during which a chargeback can be raised. Updated Disputes/Chargeback Policy Coming April 2024• Section 4: Chargeback Reason Codes—Contains detailed information on the reason codes for the most common types of chargebacks that merchants receive. Fine Period - month 2 or 3. 3. Compare account numbers. 4853 – Cardholder Dispute – Goods or Services Not Provided. Each code corresponds to an issue or problem. Chargeback Prevention Alerts Reset my arguments quickly before it become chargebacks. 9% with at least 100 total disputes. EMV Liability Shift Non-Counterfeit Fraud. The tickets were held at the box office, and no signature, swipe or imprint. There are tricks you might use to circumvent an undesirable authorization message, such as not requesting authorization at all, or making multiple attempts on a declined card. Common return codes in this category include:Step #2 | Report the Scam to PayPal. Identity theft and account breaches in which the merchant is the victim, for example, fall under reason codes 01, 02, and 14. 60. 1 What compelling evidence is needed to respond? Your chargeback response must include at least one of the following items: If the card number was correct, provide a copy of the card imprint, a copy of the charge record from the terminal that electronically read the card number, or proof you received an authorization approval. ACH return codes identify the reason an ACH payment was returned by the recipient's bank. Ensure that the digits of the. Visa anticipates that changes to the required up-front information will help eliminate the back-and-forth between merchant, acquirer, and issuer, intending to result in a quicker chargeback resolution time for our merchants. Change of Chargeback Reason to an Authorization-related Chargeback Replace ‘Change of Reason within the Cardholder Dispute Chargeback’ with this section. Never swipe a card back and forth or at an angle, as it may cause the reader to misread the stripe. Reason Code. In most cases, Wells Fargo requires that the dispute be filed within 60 days. Even though these codes are not detailed enough, they are crucial when it comes to successfully preventing and fighting chargebacks. To obtain additional information, the issuing bank sends a retrieval request to the merchant’s bank. Reason Code North-America: Canada and United States of America; Reason Code: All other countries; Fraud. in time or with the requested documentation, the Chargeback will stand. 3: Goods or services were not received: C08: RG: 4855: 13. Chargeback reason code 4837: No Cardholder Authorization applies in situations where customers claim a card transaction was unauthorized, but do not feel the issue can be resolved through the merchant. Region Only) 4855 Goods or Services Not Provided. First, after a cardholder contacts the bank to inquire about a transaction, the bank uses VROL to pull detailed transaction information. Transaction not authorised – the Card Issuing Company is stating that an authorisation code was required for the transaction, but it was not obtained. 00 EUR as a Withdrawal fee. US/Canada Chargeback reason code. The reason_code will be one of the following values: chargeback_reimbursement: The gross shows positive if the chargeback was resolved in the seller's favor, and the seller gets a refund. 1 Allocation Fraud and Authorization related chargebacks will be processed through an automated workflow. Further information at page PSR-564, 11. The chargeback can be for the total transaction amount or a lesser amount. There are a number of chargeback reason codes that are dedicated specifically to transaction errors. It is associated with a chargeback reason code, and it is specific per Card Scheme. Before the cardholder can file a chargeback, they must give a reason to their card provider. These are all the known American Express chargeback codes. A reason code is how banks categorize the reason for a chargeback. 7: Defective goods and services: C32: RM: 13. 2. P05. Reason codes are created by the major. There is a USD 25 limit for the First Chargeback (Reason Code 22). Consider Deadlines. The assigned chargeback reason code outlines why a customer submitted the dispute. TC40 data is used to inform banks and card networks when a merchant has an outstanding fraud. Once filed, the merchant generally has 20 days to respond to the chargeback. P22 – Non-Matching Card Number. Learn the details, the cause, how to respond and how to prevent American Express Reason Code P01 Unassigned Card Number . A chargeback reason code may display a chargeback related to fraud, processing errors, consumer disputes, or a variety of other reasons. 10. Save fulfillment costs, stop chargebacks, furthermore improve customer fulfillment. Chargeback Reason Code 62—Counterfeit fraud pertains to the EMV liability shift. If one of your customers issues a chargeback through their bank, you have the chance to dispute it and win back the funds. There are many reasons why a chargeback occurs, with over 100 reason codes listed across the major credit card brands. Encrypt transmission of. R05 – Unauthorized debit to consumer account using Corporate SEC code. Technical. However, they don’t address the reason why that chargeback was issued in the first place. Chargeback time limits vary depending on the reason for the dispute. The cardholder initiates contact with their bank or credit union to file a dispute. Depending on the reason for the chargeback, your evidence needs to prove you: verified the identity of the shopper. By entering your email, you agree to receive marketing emails from Shopify. 7 • A transaction has been processed against a card number that is invalid because it does not exist, has not been assigned to an active cardholder account, or is otherwise incorrect. The system does not accept blank as a value, even if it is defined in the user defined code table. Transaction unauthorized make up 30% of all. Visa chargeback reason code 75 is filed as an honest mistake. This ranges anywhere from roughly 60 to 90 days after purchase. The shorthand description is “Unassigned Card Number. In fact, for every dollar lost to chargebacks in 2019, the average merchant lost an additional $2. 16, 2021. Poor order fulfillment: Late order fulfillment or billing for an order before shipping the goods. It also regulates the way banks must respond to consumer complaints and sets limits on liability for lost or stolen debit cards. This provided a number of insights into the typical. Reason Code Description. Timeframe: Under card network rules, a cardholder has up to 120 calendar days from the settlement date to initiate a chargeback (depending on the chargeback reason code). Otherwise, the acquiring bank sends a chargeback notification. The sales receipt and/or date and amount of the authorization if other than the transaction date. chargeback_settlement: The gross shows negative if the chargeback was resolved in the buyer's favor, and the funds return to the buyer. Late Presentment Rules: Mastercard. It is caused by things like beliefs, opinions, morals, regrets, fear, and confusion. MASTERCARD Reason Code Description 01 Requested Transaction Data Not Received 02 Requested\Required information illegible or missing 07 Warning Bulletin File 08 Requested\Required authorization not obtained 12 Account number not on file 31 Transaction amount differs 34 Duplicate Processing American Express chargeback reason codes, much like Discover, bear one important difference from those under Visa and Mastercard: the issuing bank is also the card network. Many subscription payment disputes are made under code 13. 265. The most common chargeback reason codes are fraudulent charges, unauthorized transactions, and products not received, however, there are dozens of different chargeback reason codes for cardholders to choose from. For example, 'R04' indicates that an invalid account number was. Every dollar disputed represents a loss to the merchant of $3. 7, "Compelling Evidence" Added Compelling Evidence policy that details incremental optional requirements that Merchants may provide to support Chargeback reversal requests. Now, compliance cases go through Visa Resolve Online (VROL). Amazon Pay will send you a notification email when you get a chargeback, which will include details such as the order number and reason code. 4: Other Fraud – Card-Absent Environment. For example, the dispute reason “Cardholder Does Not Recognize” is denoted under the Discover reason codes system as “AA. 4512:There are dozens of reasons why cardholders and issuers dispute transactions. First Chargeback failed: Reason Code 4837 not allowed under “issuer auths, they own” chargeback rules: 100001: 400: INVALID_REQUEST: First Chargeback failed: Reason Code 4863 not allowed for authorized CAT transactions: 100001: 400: INVALID_REQUEST: First Chargeback failed: Reason Code 4863 not allowed for. The customer regrets their purchase. Merchants who believe they have received an invalid chargeback under reason code 13. The nature of the threat makes it a moving target. Paid by alternate means and card. R02 – Account closed. We want to clarify: this doesn’t imply that a transaction ID can reliably prevent chargebacks and fraud. However, you’re not alone; they create headaches for many players within the Mastercard ecosystem. Then you can research the transaction to see if the chargeback appears to be valid or not. Chargebacks—Maestro POS Transactions—added information to the section, Proper Use of Intra-European Message Reason Code 4808, about theThe chargeback reason codes below explain why this happened. Mastercard chargeback reason code 4853 falls under the “Cardholder Disputes” category. This does not include an AuthorizationRecent data suggests that total fraud costs in the travel space will exceed $25 billion a year by 2020, and that’s considered a low estimate. 9808 info@chargebacks911. Section5. The post below contains legacy information pertaining to the formerly-common Visa chargeback reason code 75. reason code information. Once filed, the merchant generally has 20 days to respond to the chargeback. The first thing you should learn is to identify the chargeback reason code, which is a kind of shorthand that indicates why the transaction is being disputed. Select a tab to see the possible.