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American Express Chargeback Response Playbook

A comprehensive playbook for American Express chargebacks covering reason codes, the unique Amex inquiry process, evidence requirements, and response strategies for the American Express dispute resolution process.

Evidence Checklist (10 items)

  • 1Amex inquiry or chargeback identification
  • 2Transaction authorization records
  • 3Cardmember details and verification
  • 4Delivery or service completion proof
  • 5Customer communication records
  • 6Refund and return policy documentation
  • 7Prior transaction history with cardmember
  • 8Amex-specific evidence format
  • 9Proof of cardmember agreement
  • 10Supporting documentation per reason code

American Express dispute process

American Express handles disputes differently from Visa and Mastercard because Amex is both the card network and the issuer. Disputes often start as inquiries where Amex requests information before deciding whether to proceed with a chargeback. Responding promptly to inquiries can prevent chargebacks entirely.

Amex inquiry vs chargeback

An Amex inquiry is a request for information, not a chargeback. Responding with complete evidence at the inquiry stage often resolves the dispute without a formal chargeback. Treat every inquiry as urgent and respond with the same thoroughness you would for a chargeback.

Amex reason codes

Common Amex reason codes include C02 (Credit Not Processed), C04 (Goods/Services), C05 (Merchandise Not Received), C08 (Authorization), C14 (Paid by Other Means), C18 (No Valid Authorization), C28 (Cancellation of Recurring), C31 (Transaction Amount Differs), and C32 (Card Not Present Fraud).

Amex-specific strategies

Because Amex acts as both network and issuer, they have access to more cardholder data than Visa or Mastercard reviewers. Be thorough and accurate in your evidence since inconsistencies are more likely to be caught. Amex also has specific formatting preferences for evidence submission through their online merchant portal.

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Frequently Asked Questions

How does an Amex inquiry differ from a chargeback?↓
An inquiry is Amex requesting information about a transaction. If you provide satisfactory evidence at the inquiry stage, the dispute may be closed without a chargeback. A chargeback means the funds have already been debited from your account.
Can I dispute an Amex chargeback decision?↓
Amex decisions can be appealed, but the process is more limited than Visa or Mastercard arbitration. Focus on submitting the strongest possible evidence in your initial response since appeal success rates are lower.
Why does Amex have different dispute rules?↓
American Express operates as a closed-loop network, meaning they are both the card issuer and the network processor. This gives them more control over the dispute process and different rules compared to the open-loop Visa and Mastercard networks where separate banks issue the cards.

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