Unauthorized charges vs. disputes: which process applies

The two different problems

Unauthorized activity means someone used your card or account without your permission. Your card number may have been stolen, your card lost, or your account taken over. Your bank’s fraud department is the right destination, and the legal framework is Reg E for debit cards and the Fair Credit Billing Act for credit cards.

A dispute, by contrast, is a disagreement about a charge that is tied to you. You bought something that never arrived, a subscription billed twice, a merchant charged the wrong amount. The charge may even be one you recognize — the problem is the terms, not the fact of the charge. The merchant or the issuer handles these, not the fraud department.

The FTC’s guidance on disputing charges captures the difference: unauthorized activity is reportable as a card problem with clear liability limits, while a disputed charge follows the billing-error path where the merchant gets a chance to prove the charge was valid.

Why the label matters

The words you use when you call the bank steer the entire process. Report an unauthorized charge and you get the fraud playbook: card frozen, new number issued, temporary credit while the bank investigates. Report a “dispute” of a charge you actually made and the bank routes you to the merchant’s refund or the billing-error process instead.

Mislabelling cuts both ways. Calling a charge fraud that you actually authorized — a family member, a card saved at a merchant you forgot — is not a crime, but it does not get you anywhere either; the merchant’s records will show the authorization and the bank will close the case. Being honest about the label is what gets you the right process the first time.

The gray zone: charges you half-recognize

Most mystery-charge panic sits in a gray zone: you do not recognize the descriptor, but the amount looks like a subscription you might have started, or the merchant name is a company you dealt with years ago. The descriptor — that string of letters on your statement — is the clue. The merchant’s real billing name is often not the name you know it by.

The best move for a gray-zone charge is to decode it before you dispute it. Look up the descriptor against our charge database, check for a recurring pattern across past statements, and look at whether the amount matches a known service. If it resolves to a subscription you started, that is a cancellation problem, not a fraud problem.

How to report an unauthorized charge

1. Call your bank the same day Report the unauthorized charge to the fraud department immediately. The response is a blocked card, a new card number, and an investigation.
2. Give them every detail The charge amount, the descriptor, the date, and whether you still have the card. Mention any recent events — lost wallet, unusual terminal, phishing message.
3. Track provisional credit The bank must generally credit your account during the investigation or explain why it cannot. Keep the reference number for every call.
4. Follow up on the outcome The bank must resolve the investigation and tell you the result in writing, including the deadline to appeal if you disagree.

When a dispute is the right route

If the charge is genuinely yours but wrong, the dispute process is the answer. The Fair Credit Billing Act gives you 60 days from the statement date to write to your card issuer about a billing error, and the issuer must acknowledge within 30 days and resolve it within two billing cycles. Regulation E gives debit card users similar recourse with its own deadlines.

The distinction between the two paths is the single most useful thing to know about a mystery charge. Unauthorized means report it as fraud. Wrong-but-yours means dispute it. And half-recognized means decode it before you do anything — the descriptor is usually the whole answer.