The transaction was processed in the wrong currency from what the cardholder agreed to.
A currency-conversion or checkout configuration error charged the customer in a different currency than displayed.
Relevant to merchants selling internationally — a currency mismatch between checkout display and settlement is the core issue.
Checkout screenshots or logs showing the currency displayed and agreed to by the customer.
Submit checkout records showing the currency the customer actually saw and confirmed.
Not keeping a record of which currency was shown to the customer at checkout.
Lock the settlement currency to match whatever currency is displayed at checkout.
Flat monthly fee, keep 100% of what you win.
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