What actually happens when a customer disputes a charge

What are the stages of a chargeback?

1. The cardholder contacts their issuing bank and files a dispute under a reason code.
2. The issuer provisionally credits the cardholder and passes the chargeback to the acquiring side.
3. The merchant is debited and notified, with a deadline to respond.
4. If the merchant submits evidence, that is representment.
5. The issuer either accepts the evidence or upholds the dispute.

What does a chargeback cost beyond the sale?

Three things are lost at once: the transaction amount, the goods or services already delivered, and a chargeback fee that applies whether the dispute is won or lost.

Above that, the chargeback ratio itself carries consequences, since sustained elevated ratios can put an account into a card brand monitoring programme.

How long do I have to respond?

Response windows are set by the card networks and are short, commonly a matter of days rather than weeks. Missing the deadline forfeits the dispute regardless of the strength of the evidence, which is why an alert reaching the right person quickly matters more than the quality of the eventual response.

What evidence actually helps?

Proof of delivery with tracking, signed receipts or authorisation records, records of communication with the customer, the refund and returns policy shown at checkout, and AVS or CVV match results. Evidence must address the specific reason code cited, not the dispute in general.