Chargebacks arise for different reasons, and the evidence required depends on the nature of the dispute. Understanding the category is the first step toward presenting the case clearly.
The transaction was not authorized
A cardholder may not recognize a payment or may believe their details were used without permission. The bank will usually consider authentication and account activity when reviewing the claim.
Goods or services were not received
The customer paid, but delivery did not take place or the agreed service was never provided. Order records, promised dates and attempts to contact the merchant become important.
The outcome differed materially from the description
The product may be defective or the delivered service substantially different from what was advertised. Evidence should show both the original representation and the actual result.
The amount was incorrect or duplicated
Processing errors can result in multiple debits or a charge for the wrong amount. Statements, invoices and payment confirmations help isolate the discrepancy.
A recurring payment was unexpected
Disputes often follow unclear renewals or ineffective cancellation. The key questions are what the customer agreed to, what notice was provided and whether cancellation instructions were followed.
The merchant did not resolve the problem
Chargebacks are sometimes initiated after customer service stops responding or rejects a reasonable request without explanation. Keeping correspondence demonstrates the steps already taken.
The correct classification matters. A chronological account supported by relevant documents is more useful than a broad complaint containing several unrelated grounds.
