Reference pagesReason codes
Cardmember dispute
American Express C02: Credit not processed
An American Express dispute reason code, what it asks you to prove, and what Do The Proof puts in the response.
What this code means
Expected credit not received
What the network says wins it
credit is not due with appropriate documents to support your position
or refund by alternate method
- Proof a credit was issued, or that none was due
How the app handles it
Arrives in the app as: Credit not processed
Proof this usually needs
What the app cannot collect for you
Policy acceptance. Your refund and cancellation policies live in your Shopify settings, and our read access does not reach them.
How long you have to respond
- Merchant response
- 20 days from the inquiry or chargeback notice
Where this comes from
- American Express, Merchant Regulations International, 17 April 2026
- Stripe, reason code categories Accessed 8 September 2026.
Other American Express cardmember dispute codes
Do The Proof drafts dispute responses for Shopify stores.
You pay when a dispute is won. Not before.