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To prove an unauthorized recurring charge, show a clear chain of events: the charge appeared, you did not authorize it or canceled it, and you acted promptly. Use statements, account records, cancellation messages, and a dated explanation. A single blurry screenshot rarely tells the whole story.

Start with the payment method. A credit-card billing error, a debit or ACH error, and a PayPal dispute follow different procedures, so the word subscription does not create one universal deadline.

What your evidence should show

An investigator is matching the transaction to an authorization. Your file should answer what was billed, who billed it, what agreement existed, and why this particular charge is wrong.

Situation Evidence that helps
You never agreed to the subscription The merchant account history, the stated signup date, available terms, and a request for the merchant's authorization records
You canceled but were charged again Cancellation confirmation, timestamp, cancellation terms, support messages, and statements showing later charges
The price or billing terms changed Original offer, subscription terms, price notices, invoices, and the amount actually charged
Someone may have used your account or card Bank alerts, login history, device information if available, and a clear statement that you did not authorize the transactions

Turns out, the strongest file is usually boring: statement, account record, cancellation message, then the next charge. That repetition helps a reviewer follow the story without guessing.

Three matching charges establish a pattern. They do not prove unauthorized use. An unfamiliar descriptor is not automatically fraud either; check whether it belongs to a parent company, app store, or household member.

Build the evidence file

Start before calling the bank. Gather the records while the dates and details are easy to verify.

  1. Download complete statements. Save the monthly PDF or official transaction history for every charge. Record the statement date, not just the transaction date.
  2. Create one charge log. List the transaction date, posting date, amount, descriptor, statement date, and transaction ID for each payment.
  3. Check the merchant account. Look for the plan name, signup date, price, renewal terms, invoices, and cancellation status.
  4. Document cancellation. Save the confirmation page, email, chat transcript, or account screen. If no confirmation exists, record when and how you tried to cancel.
  5. Contact the merchant in writing. Ask for the authorization record, a refund, and confirmation that future billing has stopped. Keep the response, including a refusal or no response.
  6. Record your financial-institution report. Note the date, case number, representative, documents submitted, and instructions for preventing another debit.

A simple charge log can use these columns: transaction date, posting date, amount, descriptor, statement date, transaction ID, and explanation. If there are six charges, list all six.

Keep the originals. Annotate a copy, not the only copy.

Make screenshots useful

Screenshots are supporting exhibits. They work best when someone can verify them without opening another app or guessing what the image shows.

A missing email receipt is only supporting context. Merchants may use another email address, an app account, or no email receipt at all.

Match the dispute to the payment method

Thing is, the payment rail controls the process. Identify it before you rely on a deadline or send a dispute.

Payment method What to do first Timing or limit to watch
Credit card Send a written billing-error notice to the issuer's billing-inquiries address. See the CFPB's Regulation Z billing-error rule. The notice generally must reach the issuer within 60 days after the statement containing the error was sent.
Debit card or bank-account EFT Notify the bank promptly and identify every disputed transfer. See the CFPB's Regulation E error-resolution rule. For certain error protections, notice is generally due no later than 60 days after the statement showing the error was sent.
Preauthorized ACH debit Revoke the authorization with the merchant in writing and ask the bank about stopping future transfers. Review the eCFR rule on preauthorized transfers. Stopping a future debit and obtaining a refund are separate issues.
PayPal Use the PayPal transaction ID, account messages, and the dispute process shown in your account. Follow the deadline in the applicable PayPal case process. Do not assume it matches a card or bank deadline.

The credit-card process generally requires a timely written notice. The issuer usually must acknowledge it within 30 days unless the issue has already been resolved, then complete the investigation within two billing cycles and no more than 90 days.

That is a process deadline. It is not a promise that every claim wins.

Do not wait for a supposed 120-day window. The applicable clock can depend on the statement, transaction type, and reason for the dispute. A credit-card deadline should not be copied onto every debit, ACH, or PayPal transaction.

Stopping payment can prevent a future debit, but it does not automatically cancel the service contract or establish that a refund is due.

Ask the merchant for a refund without weakening your claim

The merchant route is different from a bank dispute. A written request may resolve a legitimate cancellation problem faster, and it creates a useful record if the merchant refuses.

Use neutral wording. Facts matter more than labels.

Subject: Recurring charge dispute for [merchant]

I am disputing the charges listed below because [I did not authorize them / I canceled on DATE and billing continued].

Charge dates and amounts: [list each charge]

Please review the authorization and cancellation records, reverse any improper charges, and confirm in writing that future billing has stopped.

Attached are my statements, charge log, account records, and correspondence.

Sincerely,
[Name]

If you authorized an initial trial but canceled later, say that plainly. Do not describe the entire subscription as fraud if the actual problem is continued billing after cancellation.

For a credit-card billing error, contacting the merchant does not replace sending the issuer's written notice. Send both when the deadline is approaching.

Refund, billing error, or chargeback?

These terms describe different routes.

Route When it fits What to provide
Merchant refund You want the business to correct a billing or cancellation problem Charge list, cancellation record, and a short written request
Bank or card billing-error dispute The transaction was unauthorized, incorrect, or continued after authorization ended Statement, written explanation, timeline, and supporting records
PayPal dispute The payment ran through PayPal and its account process applies PayPal transaction ID, messages, cancellation evidence, and account records
Chargeback The issuer or payment system reverses funds after reviewing the dispute The same underlying evidence, presented accurately and on time

A refund is a merchant credit. A billing-error dispute is an issuer or bank investigation. A chargeback is a payment-system reversal that may follow a dispute; it is not an automatic refund.

Do not seek two recoveries for the same charge. If you open cases with PayPal and your card issuer, tell each provider about the other case and follow its instructions.

Common proof mistakes

Avoid these problems:

Do not exaggerate the facts. A precise statement such as "I authorized the trial but canceled on May 4" is usually more useful than a broad accusation.

What FTC cancellation guidance can and cannot do

The FTC announced a final click-to-cancel rule in 2024 concerning recurring negative-option subscriptions. That announcement does not replace Regulation Z or Regulation E, and it does not automatically award a refund for an individual charge. Read the FTC announcement as background, then check the current official status before relying on a federal cancellation requirement.

Your cancellation confirmation still matters. It can show what you requested, when you requested it, and whether the merchant continued billing afterward.

State law and the subscription contract may provide additional rights. This guide focuses on general U.S. payment-error procedures, not the law of a particular state.

If the dispute is denied

Ask for the decision in writing. Find out which transaction was reviewed, what evidence the decision relied on, and whether the merchant supplied an authorization or cancellation record.

Then answer the specific reason for denial. Attach one organized packet rather than sending the same screenshot repeatedly.

To be honest, a dated timeline often does more work than a dramatic affidavit. Notarization does not turn an unsupported claim into proof.

If a card issuer or bank fails to follow the applicable error-resolution process, consider a complaint to the CFPB or the appropriate state regulator. A complaint does not extend the deadline for your original notice.

This is general information for U.S. consumers, not legal advice. Today, download the first statement showing each charge, complete one line in your log for every transaction, and send a dated notice through the correct channel.