If a marketplace seller sends the wrong item, fails to deliver, rejects a return that appears to fit the posted terms, or stops replying, start with the order record. Save the listing and delivery evidence, message the seller through the platform, and open the order-specific dispute before its deadline. If the platform doesn't resolve the problem, contact the payment provider separately.

A public review or seller report can alert the platform to a pattern, but it usually isn't the same thing as a refund claim.

Choose the complaint route that matches the problem

An authorized purchase doesn't become an unauthorized transaction merely because the seller performed badly. Describe the problem accurately when you contact the platform or payment provider.

Save evidence before you file

Support staff need to compare what was advertised with what was delivered. Keep:

• The order number, seller name, listing URL, and purchase date
• Screenshots of the listing, promised delivery date, condition, specifications, and return terms
• Photos of the item, packaging, shipping label, serial number, and visible damage
• Tracking information and proof of delivery
• Messages with the seller, including dates and unanswered requests
• The receipt, payment confirmation, and any return label
• A short timeline from purchase through your latest request

Keep the original packaging until the dispute is over. For a platform case, wait for documented return instructions before shipping anything back. When a return is required, use the specified address, shipping method, and tracking service, and keep the drop-off receipt.

File the complaint through the marketplace

1. Message the seller inside the order record

Send one clear message from the order page. Identify the mismatch, state the remedy you want, and give the seller a reasonable date to respond.

Order [number]: The listing said [brief description], but I received [brief description]. I have attached photos and tracking information. I am requesting [a full refund, replacement, or return instructions]. Please respond through this platform so the conversation remains part of the order record.

Don't move the conversation or payment to a private email, text message, wire transfer, or another website because the seller asks you to. An off-platform arrangement can leave the order record incomplete and make a later review harder.

2. Open the order's official case

Use the help, return, refund, or problem-reporting option attached to the order. Select the most accurate reason, such as:

• Item not received
• Item not as described
• Damaged or defective item
• Missing parts
• Counterfeit or suspected counterfeit
• Seller failed to honor the return or refund

A general seller-report form may investigate an account without creating a refund request for your order. When both options are available, open the order dispute and submit the policy report separately.

3. Submit focused evidence

Make the important comparison obvious. For example, explain that one image shows the model advertised in the listing and another shows the different model delivered. Label files where the platform allows it. Avoid unrelated screenshots, speculation, or accusations that the evidence can't establish.

4. Follow the platform's return instructions

If the platform approves a return, follow its address, deadline, shipping method, and tracking requirements exactly. Return-shipping responsibility can depend on the reason for the return and the applicable platform policy, so don't assume every return will be prepaid.

Don't close a case because the seller promises to refund you. Wait until the refund appears in the original payment account. If the seller offers a replacement, make sure the case record reflects what was agreed.

5. Escalate with the case number

When the seller remains silent or the first decision overlooks important evidence, use the platform's formal support or appeal option. Include:

• The order and original case numbers
• The specific outcome you want
• A short timeline
• The evidence the first review may have missed
• The date by which you need the issue reviewed

A factual request tied to the order and policy is easier to review than a long message based on accusations or frustration.

Platform-specific complaint paths

Amazon

Amazon's A-to-z Guarantee is intended for eligible orders from third-party Marketplace sellers. The usual starting point is the order record: contact the seller, then use the A-to-z route if the order displays it and the problem remains unresolved.

The available Amazon A-to-z Guarantee help page is a French and European marketplace page, not a U.S.-specific policy page. For applicable cases, it says the buyer must have contacted the Marketplace seller more than 48 hours earlier without a satisfactory resolution. For delivery problems, it also lists conditions involving three days passing after the latest estimated delivery date or tracking showing delivery confirmation, whichever is sooner, and a last possible delivery date of 90 days or less.

The same page discusses European return and withdrawal rules, including a 14-day legal withdrawal period and a 30-day return policy in the relevant circumstances. Don't treat those deadlines or rights as automatic rules for a U.S. purchase. Check the policy and deadline displayed for your account and order.

For an Amazon complaint:

1. Open the order from your account.
2. Choose the return, refund, or problem-with-order option shown.
3. Contact the seller if Amazon requires it.
4. Use the A-to-z Guarantee route if it appears and the seller hasn't resolved the issue.
5. Attach the listing, delivery, communication, and product evidence.

Amazon Seller Central is a merchant dashboard, not the normal buyer complaint route. Buyers should use their order history and Amazon customer support.

A suspected counterfeit listing can also be reported separately. That report may lead to a listing or account investigation, but it doesn't by itself guarantee reimbursement for your order.

eBay

eBay's Money Back Guarantee policy covers eligible purchases only when the payment method, category, deadline, and other conditions are satisfied. It isn't a blanket guarantee for every eBay transaction.

To report an eBay problem:

1. Open Purchase History and select the order.
2. Choose the option for an item not received, a return, or a refund.
3. Describe the problem accurately and attach the relevant evidence.
4. Follow eBay's return instructions if the item is not as described.
5. Keep the tracking number and delivery confirmation.

For covered issues, the policy lists a 30-calendar-day reporting window after the estimated or actual delivery or collection date. Categories and exclusions can affect eligibility, so use the deadline shown for that transaction rather than relying on a general rule.

If eBay decides the case, its policy allows the buyer or seller to appeal within 30 calendar days of the decision. Don't send a return outside eBay's instructions or close the case before the refund is confirmed.

Etsy

Etsy combines a marketplace with individual shops, so start from the transaction rather than from a general seller complaint form. Open the order in your Purchases area and use the help or case option shown for that order.

In the order message, state whether:

• The item never arrived
• The item is materially different from the description
• The item arrived damaged
• Parts or personalization are missing
• The listing appears to violate Etsy's marketplace rules

A listing or policy report and a refund request have different purposes. Report a listing if you believe it is counterfeit, falsely represented as handmade, unsafe, or otherwise prohibited. Use the order case process when you want money back. Check the order page for the applicable case deadline because eligibility and timing can depend on the transaction.

Walmart Marketplace

For a Walmart Marketplace purchase, open the order in your Walmart account or app and use the help, return, or contact option associated with that order. Check whether Walmart or a third-party seller fulfilled it; that distinction can affect the instructions you receive.

Keep the order confirmation, seller information, delivery record, listing screenshots, and item photos. If the seller doesn't resolve the problem, ask Walmart support to review the order and give you the case number.

Don't use Walmart Seller Center for a buyer complaint. It is designed for merchants. Walmart's Walmart Fulfillment Services dispute guidance concerns seller reimbursement for customer returns and says full or partial reimbursement isn't guaranteed. That seller-facing process isn't a promise that a buyer will receive a refund.

Shopify stores

Shopify provides ecommerce software; it isn't one marketplace-wide buyer-protection program. The individual store normally handles customer service, fulfillment, refunds, and returns.

Use the order confirmation to contact the store and keep a copy of your request. If the merchant doesn't respond or doesn't resolve the issue, use the dispute process for the payment method. Shopify support may help with some platform or account issues, but it generally doesn't replace the merchant's refund process or decide every product dispute.

What the INFORM Consumers Act does and doesn't do

The INFORM Consumers Act addresses information collection, verification, and disclosure for certain high-volume third-party sellers on online marketplaces. That information can help a marketplace or enforcement agency identify a seller.

It isn't a personal refund program. It doesn't guarantee reimbursement for a particular Amazon, eBay, Etsy, or Walmart order, and it doesn't replace the platform's return or buyer-protection process. A seller-verification requirement or enforcement action isn't a shortcut around the order dispute.

For a suspected counterfeit or unsafe product:

1. Stop using it if continued use could cause harm.
2. Keep the item, packaging, and transaction records.
3. Report the listing or seller through the marketplace.
4. Open the relevant refund or item-not-as-described case.
5. Point to concrete evidence, such as mismatched serial numbers, packaging, branding, or test results.

Refunds and payment disputes

A marketplace refund may be full or partial. Timing can depend on whether the item must be returned, when the return is scanned, and how the original payment was processed. A seller's promise isn't proof that the refund has been issued.

When the marketplace doesn't resolve the complaint, contact the payment provider promptly through its official app, website, or the phone number on your statement. Ask for the provider's dispute deadline and document requirements. Credit cards, debit cards, prepaid cards, digital wallets, peer-to-peer payments, and bank transfers use different procedures.

Give the payment provider:

• The transaction amount and date
• The seller and marketplace name
• Your order and case numbers
• The promised and actual product or delivery details
• Your messages to the seller
• The marketplace decision, if any
• Photos, tracking information, and return records

A payment dispute is separate from a marketplace complaint. Opening one doesn't necessarily pause the deadline for the other. If the seller or marketplace later refunds you, tell the payment provider so you don't receive a duplicate recovery.

When asked whether you authorized the payment, answer accurately. Use the provider's fraud route for a payment you didn't authorize; use its merchant-dispute process for an authorized purchase that went wrong.

Deadlines to verify

Don't wait indefinitely for a seller to answer. A platform may require a short seller-contact period, but the marketplace and payment-provider deadlines continue to run.

Message to send support

Use the order and case numbers in a short escalation request:

Please review order [number] and case [number]. The listing stated [key fact], but the order delivered was [specific problem]. I contacted the seller on [dates] and requested [refund, replacement, or return instructions]. Attached are the listing screenshots, photos, tracking record, and message history. I am requesting [specific remedy] under the applicable buyer-protection or return policy.

Frequently asked questions

Is reporting a seller the same as opening a refund case?

No. A seller or listing report alerts the marketplace to a possible policy violation. A refund case addresses your specific order. Use both when the facts support both routes.

What if the seller asks me to close the case?

Keep the case open until the refund appears in your payment account or the replacement arrives and is acceptable. Keep the promise in the platform's messaging system.

Can I report a seller after receiving a refund?

Usually, you can still report a separate concern, such as a suspected counterfeit or unsafe listing. Say that the order was refunded and don't seek a second recovery for the same loss.

What should I do if the seller has disappeared?

Open the platform's official order case immediately. Attach the unanswered messages, preserve the seller's profile and listing information, and note the case number. If the platform doesn't resolve the matter, contact the payment provider before its separate deadline.