Say a charge on your statement looks wrong. It is $84, from a merchant name you half recognize. You grab your phone and start dialing. Ten minutes later you are on hold, hunting for a receipt, unsure what you are even asking for. A little prep before that call changes how it goes. This guide covers what to sort out first, which deadline matters, and what to ask. It is general education, not advice for your situation.

A printed statement with one charge circled in blue pen beside a notepad of handwritten dates and amounts on a sunlit kitchen table.
A statement with one charge circled in pen beside a notepad listing dates, amounts, and questions for the issuer call.

Know which kind of problem you have

Start by naming the problem. The Consumer Financial Protection Bureau (CFPB) notes that different situations may follow different processes, so the label matters.

An unauthorized charge is one you did not make or permit. A billing error might be a wrong amount or a charge posted on the wrong date. A defective product is something you paid for that did not work or was not as described. The CFPB says a separate dispute process may apply to defective goods or services, so do not assume one script fits all three.

Timing matters too. The CFPB says that if you report a lost or stolen card before it is used, you cannot be held responsible for unauthorized charges. Jot down when you first noticed the problem. It is a small detail that can matter later.

Gather the facts and documents first

Pull up the statement with the charge. Note the posting date, the amount, and the merchant name exactly as printed. Then collect anything tied to it: receipts, order confirmations, emails, refund records. If you can describe the charge without guessing, the conversation stays short.

Find your card agreement as well. The CFPB suggests checking it for your rights on unauthorized charges. If you cannot find your copy, the issuer's website usually has it, and the CFPB runs a Credit Card Agreement Database.

Then set up a simple log. Write the date and time of each contact, the representative's name or ID, and what was said. The CFPB advises keeping copies of everything and noting the dates of follow-up calls in one file. A messy dispute gets easier when you have a timeline.

Understand the deadline and what follows

Here is the part people skip. The CFPB says to call right away, but to protect your rights you must also send a written billing error notice within 60 calendar days after the charge appeared on your statement. The call starts things. The letter is what the rules lean on. Count the 60 days from the statement date and put the end date on a calendar. The FTC offers a sample dispute letter if you want a starting format.

After the company gets your notice, it has 30 days to send a letter confirming receipt, unless it has already finished the required resolution steps in that time. If no letter shows up, that is worth noting in your log.

There is also a hidden cost to think through. Paying a disputed charge does not forfeit your dispute, the CFPB says, but you probably will not get the money back until the company decides you were right. So the question of paying while the dispute is open is worth understanding before the call, not during it.

If you win, the charge must come off your bill. If the company says the bill is correct, it must explain why in writing, state what you owe, and give a due date. That written reason is something you can check against what you were told on the phone.

Prepare your questions and know the gaps

Write your questions down. A few useful ones:

  • Did you send written confirmation of my dispute, and by what date?
  • Can interest be charged on a charge I told you I did not make?
  • If you find the bill correct, what is the reason in writing, and how much do I owe by what date?

Some background helps too. According to the CFPB's credit card overview, companies can typically change terms for future purchases but generally must give 45 days' notice of significant changes. Your rate on existing balances generally cannot rise unless you are late. Most companies figure interest daily, which is why a lingering balance can keep growing while you wait.

Be honest about what these sources leave out. They do not give a phone script, list the identity details to have ready, or say how long an investigation can run after the confirmation letter. They also do not explain how a dispute touches your credit report, or how replacement cards and credit line changes are handled. For those, read your card agreement, the issuer's own dispute instructions, and the FDIC's billing issues guidance.

If the issue stays unresolved, the CFPB complaint process asks what happened, what fair resolution you want, and what you have already tried. You can track the response online or at (855) 411-CFPB (2372), per the CFPB's complaint walkthrough. Your notes from the call log will make that form much easier to fill out.

Please seek a professional. This article is general information, not financial, tax or insurance advice. Please seek a licensed financial, tax or insurance professional about your own situation.