My Credit Card Transaction Is Withheld Due To Security Reasons -

Transaction withheld – Security flag – [Customer ID / Transaction ID]

The transaction triggered a security rule (e.g., unusual location, amount exceeds normal pattern, merchant category mismatch with spending habits). Transaction withheld – Security flag – [Customer ID

Here’s a draft write-up you can use to communicate this issue to a customer, a bank, or your internal team, depending on who the recipient is. amount exceeds normal pattern

Transaction withheld pre-authorization. Card status set to “temporarily restricted.” or your internal team

Sincerely, [Bank/Card Issuer Name]

If this transaction was not authorized by you, please let us know right away so we can cancel this card and prevent any further unauthorized use.