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Amex · F31Fraud22% industry win rate

EMV Lost/Stolen/Non-Received

Lost/stolen card at non-EMV terminal.

Required evidence

  • Chip+PIN records

Playbook

Prove chip authentication used.

Amavest auto-bundles this

When a dispute hits your Stripe account with code F31, Amavest pulls the evidence above, drafts the response, and submits it before the deadline.

Related fraud codes

Frequently asked questions

What does Amex chargeback reason code F31 mean?
Lost/stolen card at non-EMV terminal.
What is the win rate for Amex F31 disputes?
Industry-observed representment win rate for Amex F31 (EMV Lost/Stolen/Non-Received) averages around 22% when the correct evidence is submitted within the network's response window.
What evidence is required to fight a Amex F31 chargeback?
To dispute Amex F31, acquirers typically require: Chip+PIN records.
How should a merchant respond to a Amex F31 dispute?
Prove chip authentication used.