When a cardholder disputes a charge, their issuing bank typically credits them and sends a chargeback message through the card network to the merchant's acquirer, tagged with a reason code. The merchant can accept it or 'represent' the charge with evidence (receipts, delivery proof, terms). If the two sides still disagree, the network can move it to arbitration and decide who eats the loss. Money only actually moves on settlement legs between the banks; the network is routing the messages and the rules.
The flow at a glance
Who’s involved
- Cardholder
- The person who paid and is now disputing the charge
- Issuer
- The bank that issued the card and represents the cardholder in a dispute
- Card network
- Routes dispute messages and sets the reason codes, deadlines, and arbitration rules
- Acquirer
- The merchant's bank/processor that receives the chargeback on the merchant's behalf
- Merchant
- The business that took the payment and can contest the dispute
How it moves, step by step
- 1messageCardholder
The cardholder contacts their issuer and disputes a charge (e.g., 'I never got this', 'I didn't authorize this', 'the amount is wrong').
- 2moneyIssuer
The issuer typically posts a provisional credit to the cardholder, often before any merchant has been heard from. This is a real money movement on the cardholder's account, though it can be reversed later.
- 3messageIssuer
The issuer files a chargeback through the card network, attaching a reason code that classifies the dispute (fraud, product-not-received, processing error, and so on).
- 4messageAcquirer
The network routes the chargeback to the merchant's acquirer, which notifies the merchant. The merchant now has a deadline to respond.
- 5moneyMerchant
The disputed amount is pulled back from the merchant's settlement on a bank-to-bank leg once the chargeback posts, whether or not the merchant contests, commonly along with a fixed dispute fee charged by the acquirer. Winning representment returns the disputed amount later, though usually not the fee.
- 6messageMerchant
If the merchant believes the charge was valid, it submits representment: evidence answering the specific reason code (signed receipt, AVS/CVV match, delivery tracking, the agreed terms).
- 7exceptionIssuer
The issuer reviews the representment. If the evidence is convincing, the dispute is resolved in the merchant's favor and the provisional credit to the cardholder can be reversed.
- 8exceptionCard network
If both sides still disagree, the case can escalate to arbitration, where the network applies its rules and assigns the loss (plus possible arbitration fees) to one party.
When it’s final
Dispute windows and response deadlines are typically measured in tens of days and vary by network, reason code, and region; the money legs (the provisional credit, the pull-back, any reversal) each settle bank-to-bank on their own timelines rather than instantly.
Risk & reversibility
Educational framing only, not legal or compliance advice. In the US, credit-card disputes are shaped mainly by Regulation Z, while Regulation E covers many electronic transfers such as debit; equivalents exist elsewhere, and reason codes, deadlines, and evidence requirements differ by network and program. Confirm specifics with your acquirer, processor, and counsel before relying on any timeline or right described here.
Common misconceptions
Myth: A chargeback is the same thing as a refund.
Reality: A refund is the merchant voluntarily returning money through the normal payment flow. A chargeback is the issuer forcibly reversing the charge through the network's dispute process, usually with a fee and a paper trail the merchant didn't choose.
Myth: The card network decides who wins and pays out the money.
Reality: The network mostly routes the dispute messages and enforces the rules and deadlines. The issuing and acquiring banks move the actual money on settlement legs; the network only adjudicates directly if a case reaches arbitration.
See it in the studio
Terms in this guide
Sources
- Visa dispute and chargeback resources ↗ · Visa (operator). Network guidance on how disputes work and how merchants respond.
- Mastercard dispute resolution ↗ · Mastercard (operator). Network view of the chargeback and dispute management cycle.
- Regulation Z / Regulation E consumer protections ↗ · CFPB. Educational context on US cardholder dispute rights; the CFPB now administers Reg E/Z. Not advice.
- Regulation E electronic fund transfer protections ↗ · CFPB. Covers dispute rights for debit and other electronic fund transfers. Not advice.
Educational, plain-English explainers. Not legal, compliance, tax, or financial advice. These cover fundamentals, not current fees, limits, or rates (which change). Rails and parties vary by program and country, so verify specifics against primary sources. Last reviewed June 2026.