Visa 12.3 — Incorrect Currency
Processing Error chargeback.
Code
12.3 VisaCategory
Processing Error
What it means
Charged in a different currency than agreed, or DCC was applied without consent.
Evidence that wins
Receipt showing currency agreed by the cardholder.
How to prevent it
Show the currency clearly; record DCC consent.
Rules and deadlines differ by region and acquirer — always check the instructions in your PSP dashboard.