How ChargebackAssistant Works

From dispute notification to a winning defense letter — in under 60 seconds. Here's exactly what happens when you use ChargebackAssistant.

Try It Free — 3 Disputes

No credit card  Results in 60 seconds

Three Simple Steps

No technical knowledge required. Anyone can use ChargebackAssistant.

1

Enter Your Dispute Details

Tell us about the chargeback. You'll fill in:

  • Payment processor (Stripe or PayPal)
  • Dispute reason (fraudulent, not received, etc.)
  • Transaction amount and dispute ID
  • What the customer bought and when
  • Any evidence you already have
Takes about 2 minutes to complete
2

AI Generates Your Defense

Our AI — powered by Anthropic Claude — instantly analyses your case and produces:

  • Professional defense letter tailored to your dispute reason
  • Win probability score (e.g. 82% strong case)
  • Evidence checklist — exactly what to gather
  • Strategic recommendations specific to your processor
Defense ready in under 60 seconds
3

Download, Submit & Win

You're given everything needed to submit a strong response:

  • Download a formatted PDF document
  • Follow the evidence checklist to gather support
  • Submit directly to Stripe or PayPal before the deadline
  • Track all your disputes from your dashboard
Users report 80%+ win rate

What the AI Actually Does

ChargebackAssistant uses Anthropic Claude, one of the world's most capable AI models, trained on payment dispute resolution processes, card network rules, and thousands of real chargeback outcomes.

Analyses the Dispute Reason

Identifies the exact chargeback code and what card networks require to overturn it.

Writes a Tailored Defense

Drafts a professional, persuasive rebuttal that addresses every point the issuing bank will review.

Lists Required Evidence

Tells you exactly which documents will strengthen your case — no guesswork.

Scores Your Win Probability

Gives an honest assessment of your chances based on dispute type, reason code, and evidence available.

Example AI Output

Win Probability 82% — Strong Case

Defense Letter Preview

"We are writing to formally dispute the chargeback raised against Transaction ID #TXN-28491. The cardholder's claim of fraudulent activity is contradicted by the following verified evidence: the order was placed using the verified billing address on file, delivery was confirmed via Royal Mail tracking on 14 March 2026, and the customer's IP address at time of purchase matches their registered location..."

Evidence Checklist

  • Royal Mail tracking confirmation
  • IP address log at time of purchase
  • Customer email correspondence
  • Signed delivery receipt (if available)

Supported Payment Processors

Defense letters are formatted specifically for each processor's requirements

Stripe Disputes

Stripe typically gives merchants 7–21 days to respond. Our AI generates a response formatted for Stripe's evidence submission portal.

  • Fraudulent disputes (most common)
  • Product not received
  • Product not as described
  • Subscription cancelled
  • Duplicate charge
Stripe Chargeback Guide →

PayPal Disputes

PayPal disputes go through their Resolution Centre. Our AI tailors the response to PayPal's internal review process and escalation procedures.

  • Item Not Received (INR)
  • Significantly Not as Described (SNAD)
  • Unauthorised transaction
  • Billing dispute
  • Chargeback (via card issuer)
PayPal Dispute Guide →

Frequently Asked Questions

Not at all. You just describe what happened in plain English, and the AI handles all the legal language, chargeback codes, and formatting. The whole process takes about 5 minutes from start to finished defense letter.

The score is based on the dispute reason, how much evidence you have, and historical outcomes for similar cases. It's an estimate, not a guarantee — but it helps you understand how strong your case is before you submit. Users with scores above 70% win the majority of their disputes.

Typically under 60 seconds. Once you submit the dispute form, the AI processes your case and returns a full defense letter, evidence checklist, and win probability score immediately.

Yes. The defense letter is shown in full on your dispute page and included in the PDF download. You can copy it and edit it before pasting into Stripe or PayPal's evidence portal.

If the initial dispute is lost, you may be able to file a pre-arbitration appeal. ChargebackAssistant supports this — you can create a new dispute record for the same case and generate an appeal letter. See our Chargeback Appeal Guide for more information.

Yes. Your dispute details are stored securely and are only accessible to your account. We do not share your data with third parties. See our Privacy Policy for full details.

82%

Average Win Rate

< 60s

Defense Generated

2,400+

Disputes Processed

£850K+

Revenue Protected

Ready to Fight Your First Chargeback?

Start free — 3 disputes included, no credit card required.

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