Network
AmexCode
P23Response window
20 calendar daysWin difficulty
MediumDispute type
Processing ErrorAmex P23 — Currency Discrepancy: What It Is and How to Respond
Got an Amex currency discrepancy chargeback?
Generate a network-compliant response in 3 minutes.
Urgent — 20-day response window: Amex P23 disputes must be responded to within 20 calendar days of notification. Gather your checkout currency disclosure screenshots and DCC consent records immediately.
P23 is filed when the transaction was processed in a different currency than what the cardholder understood or agreed to. This is common for international merchants who show prices in one currency but charge in another, or for Dynamic Currency Conversion (DCC) transactions where the cardholder didn't clearly consent to the conversion.
The cardholder's complaint is straightforward: they expected to pay a specific amount in a specific currency, and their statement shows a different currency or amount. Whether you can win P23 depends entirely on whether you can prove the currency was clearly disclosed and explicitly agreed to before the transaction was processed.
If you need a compliant response generated automatically, our AI chargeback response generator handles P23 and all Amex reason codes. For fully managed disputes, our chargeback outsourcing service handles the entire response process for $10/case.
Common reasons you received this dispute
- 1Price displayed in USD but charged in GBP or EUR without explicit disclosure at checkout
- 2DCC transaction where the cardholder did not clearly opt in — or where opt-in was ambiguous (pre-ticked boxes, confusing UI)
- 3A pricing error where the system used the wrong currency code in the settlement record
- 4An e-commerce site that shows localised pricing estimates but processes in a different base currency without disclosing this at checkout
Can you win this dispute?
Fight this dispute if...
- ✓The transaction currency was clearly disclosed at checkout and you have a screenshot showing the exact currency and amount the cardholder agreed to
- ✓For DCC: you have evidence of explicit opt-in consent — a screen showing both currencies and an explicit "I accept" action by the cardholder
Accept this chargeback if...
- ✗No currency disclosure was made at checkout, or your checkout only shows a localised price estimate without stating the actual charge currency
- ✗DCC was applied without explicit cardholder consent — including opt-in via a pre-ticked checkbox or ambiguous button label
Evidence checklist
- ✅ Required
Checkout screenshot showing currency disclosure: A screenshot of your checkout page at the time of the transaction, showing the exact transaction currency and amount clearly displayed before the cardholder confirmed payment.
- ✅ Required for DCC disputes
DCC consent record: Evidence that the cardholder explicitly opted into Dynamic Currency Conversion — ideally a log showing the DCC consent screen was presented, the amounts in both currencies were displayed, and the cardholder actively confirmed the conversion.
- ⭐ Strongly recommended
Order confirmation showing currency: The confirmation email or receipt sent to the cardholder, which should show the exact currency and amount charged — demonstrating the cardholder had notice of the charge currency immediately after purchase.
How to prevent this chargeback
- 1
Display the exact transaction currency at checkout — not just a converted estimate: If you charge in GBP, show the GBP amount prominently on the checkout page. If you show estimated USD pricing for US customers but actually charge in GBP, make this explicit: “You will be charged £XX (approximately $XX).”
- 2
Require explicit DCC consent with a clear opt-in: Never apply DCC by default or via a pre-ticked box. The opt-in screen must show both the local currency amount and the home currency amount, with a clearly labelled button. Something like: “I accept the GBP charge of £XX” is the standard Amex expects.
- 3
Reconcile your displayed prices against your processor's settlement currency: Run a regular audit comparing the currency shown on your checkout with the currency your processor actually settles in. Discrepancies found this way can be corrected before they generate chargebacks.
Key deadlines
Response window: 20 calendar days from the chargeback notification date.
Retain checkout screenshots and DCC consent logs for all international transactions — these are the only evidence that can win a P23 dispute.
Frequently asked questions
What is an Amex currency discrepancy chargeback?
An Amex currency discrepancy chargeback occurs when the cardholder was charged in a different currency than the one displayed at the time of purchase. The merchant must provide evidence of the currency disclosed at checkout.
How do I respond to an Amex currency discrepancy dispute?
To respond, provide your checkout page screenshot showing the currency displayed, the transaction receipt, and any currency conversion disclosure. ChargeMate can generate a compliant response automatically.
What is the time limit to respond to this chargeback?
Amex typically gives merchants 20 days to respond to a chargeback. Missing this deadline results in automatic loss of the dispute.
What is an Amex P23 chargeback?
Amex P23 (Currency Discrepancy) is filed when the transaction was processed in a different currency than what the cardholder understood or agreed to. This is common for international merchants who show prices in one currency but charge in another, or for Dynamic Currency Conversion (DCC) transactions where the cardholder did not clearly consent to having the transaction converted to their home currency.
How does Dynamic Currency Conversion (DCC) cause P23 disputes?
Dynamic Currency Conversion allows a merchant to convert a transaction into a cardholder's home currency at the point of sale — but only if the cardholder explicitly opts in. When DCC is applied without clear cardholder consent, or when the cardholder declines DCC but the transaction is still processed in the converted currency, Amex P23 disputes follow. The cardholder expected to be charged in the merchant's local currency and instead sees a charge in a different currency at a rate they didn't agree to.
What currency disclosure is required for international transactions?
For e-commerce, you must display the exact transaction currency prominently at checkout — not just a localised price estimate. For DCC, Amex requires explicit opt-in consent: the cardholder must actively choose the conversion. A pre-ticked box or an ambiguous notice does not meet Amex's disclosure requirements. The cardholder must see the exact amount in both currencies and actively choose to proceed with the conversion.
How do I fight a P23 chargeback?
To contest P23, you need a screenshot or recording of your checkout showing the exact transaction currency clearly disclosed, and evidence that the cardholder explicitly accepted the charge in that currency. For DCC transactions, you need proof of explicit opt-in consent — a clear acknowledgement screen showing both the home currency amount and the local currency amount, with a button the cardholder clicked to confirm. Without this evidence, accept the chargeback.
Related reason codes
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