For a U.S. buyer, the best way to dispute a suspected counterfeit is to preserve the item, document the listing and order, open the marketplace case promptly, and escalate through the payment provider if necessary. Don’t describe an authorized purchase as an “unauthorized transaction.” The problem is that the product was allegedly counterfeit or materially different from the listing.

Marketplace policies, payment rules, and state laws are separate. The steps below help you use each route without assuming that one platform’s deadline or refund promise applies everywhere.

Counterfeit product dispute checklist

1. Stop using the item. Don’t plug in, consume, apply, or wear a product that could be unsafe.
2. Keep the item and packaging. Save labels, inserts, tags, serial numbers, shipping materials, and the delivery box.
3. Capture the listing. Take screenshots showing the product description, authenticity claims, seller name, price, photos, order number, and delivery date.
4. Photograph the differences. Show logos, stitching, materials, packaging, labels, serial numbers, measurements, and other details that differ from the genuine product.
5. Seek credible authentication. Ask the brand or use an independent expert whose written report identifies the specific concerns.
6. Contact the seller inside the marketplace. Request a full refund and keep the conversation in the platform’s message system.
7. Open the platform’s formal case. Choose the most accurate reason, such as “counterfeit,” “item not as described,” or “materially different.”
8. Return the product only as instructed. Use the platform’s label or address, keep tracking, and photograph the packed shipment.
9. Escalate before the displayed deadline. Use the platform appeal process, PayPal, or your card issuer when the seller or marketplace does not resolve the case.
10. Report suspicious conduct separately. A seller report can support enforcement, but it doesn’t replace a refund request.

Start the formal case even if brand authentication is still pending. You can explain that the product is suspected counterfeit and add the report later if the platform allows supplemental evidence.

How to prove an online product is counterfeit

A vague statement that an item “looks fake” may not be enough for a marketplace reviewer. Build a file that connects the seller’s representation to the product you received.

Save the listing before it changes

Download or screenshot:

• The full product title and description
• Claims such as “authentic,” “genuine,” “official,” or “authorized”
• Seller information and storefront name
• Product photos and variations
• Price, shipping charges, and promised delivery date
• Order confirmation, invoice, and payment record
• All messages with the seller or platform

Include the date in your notes. If the listing disappears, the screenshots can show what you agreed to buy.

Photograph the item systematically

Take well-lit photos of the entire product and close-ups of the suspected defects. Useful comparisons include:

• Misspelled brand names or incorrect fonts
• Wrong logo placement, color, or proportions
• Poor stitching, seams, glue, plating, or printing
• Packaging that differs from the brand’s official images
• Missing warnings, labels, manuals, or required markings
• A serial number that is missing, duplicated, or in the wrong format
• Materials, dimensions, weight, or components that don’t match the listing

A serial number alone doesn’t prove authenticity because counterfeiters can copy genuine numbers. A written statement from the brand or an established authenticator is usually more persuasive than an automated scan or an online certificate with no identifiable expert behind it.

Some brands won’t authenticate items for consumers. If that happens, keep a record of the response and use other evidence, such as a report from a qualified independent authenticator and side-by-side comparisons with the brand’s specifications.

Don’t alter the product while gathering proof. Avoid removing tags, cleaning it, opening sealed electronics, or conducting risky tests. If the product presents a safety risk, photograph it without handling it more than necessary.

Contact the seller without weakening your case

Message the seller through the marketplace, even if you expect the seller to deny the allegation. This creates a dated record and may be required before the platform accepts an escalation.

You can use this wording:

Order number: [number]
The listing represented this item as [authentic or exact description]. I received an item that I suspect is counterfeit because [specific, observable differences]. I’m requesting a full refund. Please provide the platform-approved return instructions, if a return is required. I’ve attached photographs and the listing screenshots.

Keep the tone factual. Don’t threaten the seller, make claims you can’t support, or move the conversation to text, email, or a private payment channel. If the seller offers a partial refund, replacement, or a return to a different address, save the offer and decide only after checking the platform’s instructions.

Platform-specific refund steps

The platform’s own order page controls the available buttons, deadlines, and return requirements. Don’t rely on a generic blog post that gives a deadline for a different country or product category.

eBay

For a suspected fake, use the factual transaction issue rather than simply leaving feedback. State that the item was represented as genuine but appears counterfeit, attach the listing and product evidence, and follow any return instruction inside the case.

The eBay policy allows an appeal within 30 calendar days of an eBay decision. If the seller or eBay rejects the case, read the reason carefully and appeal before the order’s displayed deadline. Don’t open a second case for the same transaction unless eBay instructs you to do so.

Amazon

Amazon’s A-to-z Guarantee is a marketplace process, not a universal authentication service. First use the order page and give the marketplace seller the opportunity required by the instructions shown for your order. If the seller doesn’t resolve the issue, file the A-to-z claim if that option is available.

Describe the exact mismatch. For example, say that the listing promised an authentic branded item but the received packaging, serial format, or construction conflicts with the brand’s published specifications. Avoid calling the transaction unauthorized if you placed the order yourself.

Shein, Temu, Etsy, and Alibaba

These platforms may require photos, a return, seller contact, or a response within the order’s case window. Upload evidence in the platform before sending the item back. If the app gives you only a general “quality” or “not as described” choice, select the closest accurate reason and write “suspected counterfeit” in the explanation.

A return to an overseas seller can create practical problems, including tracking disputes and long shipping times. Don’t send the item to an address supplied only in a private message. Ask the platform for written instructions through the case.

Should you return a suspected counterfeit?

Don’t mail it back until the platform tells you where and how to return it. A seller may provide a different address from the official return label, or may ask you to pay international shipping outside the platform.

If a return is required:

• Use the label or address displayed in the official case.
• Choose tracking and keep the receipt.
• Photograph the item inside the package and the sealed package.
• Save the tracking number and delivery confirmation.
• Don’t remove the case evidence until the refund posts.
• Don’t close the dispute because the seller promises to refund you later.

If the platform tells you to keep, dispose of, or surrender the item, save that instruction. Don’t resell a product you know or reasonably believe is counterfeit. For dangerous goods, follow the platform’s handling instructions and avoid putting hazardous products in ordinary mail.

Escalate through the payment provider

A payment dispute is separate from a marketplace return. Use it when the seller or platform denies the claim, stops responding, fails to issue an approved refund, or imposes a return process that the payment provider needs to review.

Credit card

Call the issuer using the number on the card and ask which dispute category applies. Explain that you authorized the purchase but received merchandise that was allegedly counterfeit or not as described. Ask about the issuer’s filing deadline and the documents it requires.

Provide:

• The receipt and transaction amount
• The original listing and seller details
• Photos of the received product
• Authentication or brand correspondence
• Your messages with the seller
• The marketplace decision or case history
• Return tracking or proof that the platform did not provide workable instructions

Do not report the transaction as an unauthorized purchase unless someone actually used your card without permission. Mislabeling the dispute can undermine your credibility.

Debit card, prepaid card, or bank transfer

Contact the financial institution immediately. Debit and prepaid-card processes don’t necessarily provide the same protections or workflow as a credit-card billing dispute. Bank transfers and wires may be difficult to reverse, but prompt notice can still matter.

If you paid through a peer-to-peer payment service, use its transaction-dispute process and preserve the payment record. Recovery isn’t guaranteed, particularly when the payment was sent outside the marketplace or marked as a personal transfer.

PayPal

Open the transaction in PayPal’s Resolution Center and select the option that accurately describes the problem, such as an item not as described. Follow the deadline displayed for that transaction and upload the same evidence used in the marketplace case.

Tell PayPal if the marketplace has already issued a refund or if another dispute is pending. You’re entitled to recover the purchase once, not twice. If a marketplace refund posts after a payment dispute begins, update the payment provider promptly.

What the INFORM Consumers Act does and doesn’t do

The U.S. INFORM Consumers Act addresses marketplace transparency around high-volume third-party sellers. According to the FTC’s INFORM Consumers Act guidance, once a high-volume seller provides banking account, contact, and tax-identification information, the marketplace generally has 10 days to verify that information. The FTC also says marketplaces must give users a way to report suspicious conduct involving covered sellers.

The FTC lists civil penalties of up to $53,088 per violation for noncompliance. That enforcement authority belongs to the government, however. The law doesn’t automatically authenticate your item, order a refund, or make every marketplace liable for every counterfeit sale.

Report the seller through the platform’s suspicious-conduct or product-reporting tool, and keep the confirmation. Treat that report as a separate enforcement step. Your refund still depends on the marketplace policy, payment method, evidence, and applicable consumer law.

State consumer-protection and contract rules may provide additional options, but they vary. If the amount is substantial or the product caused an injury, consult a qualified consumer attorney or your state consumer-protection agency. This article provides general U.S. consumer information, not legal advice.

Deadlines and refund timing

There is no single counterfeit-dispute deadline for every marketplace or payment method.

A refund “approved” by the marketplace may take additional time to reach your account. Keep checking the original payment method, not just the marketplace wallet or order page.

Mistakes that commonly weaken a claim

• Waiting for a perfect authentication report. Open the platform case before its deadline and say that further evidence is pending.
• Using only a close-up photo. Include the listing, seller information, order record, packaging, and full-item photographs.
• Calling an authorized purchase card fraud. Use “not as described” or the provider’s counterfeit category when accurate.
• Returning the product privately. Use the official case instructions and tracking.
• Accepting a partial refund without understanding the consequence. Confirm whether accepting it closes the claim.
• Closing the case after a promise. Wait until the money is credited.
• Testing a potentially unsafe product. Don’t risk injury to create evidence.
• Opening duplicate disputes without disclosure. Tell each provider about other active cases and any refund received.
• Assuming the INFORM Act guarantees compensation. It supports marketplace transparency and enforcement, not an automatic buyer refund.

Frequently asked questions

Do I need a brand authentication letter?

Not always. Platforms may consider photographs, listing claims, packaging defects, serial-number evidence, expert reports, or correspondence with the brand. There’s no universal evidence requirement, so submit the strongest material available and follow the case instructions.

Can I dispute a counterfeit purchase if I authorized the payment?

Possibly. Ask the card issuer or payment provider whether the transaction qualifies as merchandise not as described or counterfeit. Don’t claim that the payment was unauthorized when you made the purchase.

Will reporting the seller to the FTC get my money back?

Not directly. A government or platform report may support enforcement, but it doesn’t replace the marketplace refund case or payment dispute.

What if the seller demands that I return the item to another country?

Don’t ship it based only on a private message. Ask the marketplace for official return instructions, save the seller’s request, and contact your payment provider before its dispute deadline. A prepaid label or free return is policy-dependent, so don’t assume one will be provided.

How long should I keep the counterfeit item?

Keep it, along with the packaging and evidence, until the marketplace and payment provider have finished reviewing the claim. If the platform gives written disposal or surrender instructions, follow those instructions and keep a copy.

Screenshot the listing, preserve the product, and open the in-platform dispute today. Then record every deadline in your order page, payment account, and case messages.