Why it happens
- The currency code sent with the transaction did not match the price shown.
- Dynamic currency conversion was applied without the cardholder’s clear choice.
Visa12.3Processing error
Incorrect Currency
The transaction was processed in a different currency than the one shown to the cardholder, or a currency conversion was applied without the cardholder agreeing to it. A change in exchange rates alone is not a reason for this dispute.
What to send to fight it
- The checkout page, receipt or invoice showing the currency the cardholder agreed to.
- Proof the cardholder actively chose currency conversion, where it was offered.
- The transaction record showing the currency code used.
How to prevent it
- Charge in the currency displayed at checkout.
- If you offer currency conversion, make it an explicit choice and show both amounts.
Summaries written by NoChurn from the networks’ public rules and processor documentation. Networks update their rules and deadlines depend on your processor: check its documentation before you respond.
Other Visa codes
- 10.1EMV Liability Shift Counterfeit Fraud
- 10.2EMV Liability Shift Non-Counterfeit Fraud
- 10.3Other Fraud – Card-Present Environment
- 10.4Other Fraud – Card-Absent Environment
- 10.5Visa Monitoring Programs
- 11.2Declined Authorization
- 11.3No Authorization/Late Presentment
- 12.2Incorrect Transaction Code
- 12.4Incorrect Account Number
- 12.5Incorrect Amount
- 12.6.1Duplicate Processing
- 12.6.2Paid by Other Means
- 12.7Invalid Data
- 13.1Merchandise/Services Not Received
- 13.2Cancelled Recurring Transaction
- 13.3Not as Described or Defective Merchandise/Services
- 13.4Counterfeit Merchandise
- 13.5Misrepresentation
- 13.6Credit Not Processed
- 13.7Cancelled Merchandise/Services
- 13.8Original Credit Transaction Not Accepted
- 13.9Non-Receipt of Cash or Load Transaction Value
Sources (3)
- Visa Core Rules and Visa Product and Service Rules (24 October 2026) · checked 2026-11-09
- Visa Dispute Management Guide for Merchants · checked 2026-11-09
- Visa, Evolution of Compelling Evidence: FAQs (October 2022) · checked 2026-11-09
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