A defective item has no universal U.S. 14-, 30-, or 90-day refund deadline. The route that matters may be the seller's return policy, a marketplace guarantee, a written warranty, your payment provider's dispute process, or state law. Those routes can have separate deadlines.

Preserve the evidence now, contact the seller in writing, and record the last day for every available route. This is general information for U.S. consumer situations; marketplace terms and state laws can differ.

Identify the problem before choosing a route

Describe what happened accurately. Buyer’s remorse is not the same as a product defect, and a product damaged through misuse may fall under a policy or warranty exclusion.

An "all sales final" policy may limit a voluntary return, but it does not by itself resolve every issue involving a misdescription, written warranty, or damage on arrival. Ask the seller which policy applies and what remedy it is offering.

Step-by-step defective-item checklist

1. Make the item safe and preserve it

Unplug an electrical product that is overheating, sparking, or producing smoke. Stop using the item if continued use could worsen the damage. Keep the item, packaging, accessories, and shipping label.

If there is a safety concern, do not modify or repair the product before documenting the problem. If the package is visibly crushed or torn, photograph it before opening it. An unboxing video can help, but it is not required and does not prove every part of a claim.

2. Record the facts

Create a short timeline with:

• Order date and delivery date
• Seller and marketplace name
• Item name, model, and serial number
• Amount paid, including shipping and tax
• Date you first noticed the problem
• Tests you performed and what happened
• Every contact with the seller or platform
• Any promised refund, replacement, or repair date

Save screenshots of the listing, selected size or model, promised specifications, seller name, estimated delivery date, and return terms. Listings and seller pages can change after purchase.

3. Map every deadline

Check these four sources:

1. The retailer's return and refund policy
2. The marketplace's buyer-protection or dispute policy
3. The manufacturer's written warranty
4. Your card issuer or bank's dispute instructions

There is no universal U.S. refund window for every ordinary online purchase. Many businesses set their own return periods. The Federal Trade Commission's guidance on resolving problems with a business recommends checking the seller's policy and keeping records of your contacts.

Write down the deadline, the required submission method, and whether the request must be received by that date. A seller conversation should not cause you to miss a marketplace or payment-provider deadline.

4. Contact the seller in writing

Use the platform's messaging system or the seller's customer-service email. Identify the order, explain the failure, and request a specific remedy.

You might request a full refund, replacement, repair, or prepaid return label, depending on the circumstances and the remedy you want. Give the seller a reasonable date to respond, but don't claim that a particular number of days is required by federal law. If another deadline is close, use the marketplace or payment-provider process before waiting for the seller's reply.

5. Return the item only with clear instructions

Obtain the return address, authorization number, label instructions, and return deadline in writing. Don't ship a defective item to an address found in an old message or on a separate website.

Before sending it:

• Photograph the item, accessories, and packaging
• Keep the tracking number and shipping receipt
• Use the return method required by the seller or platform
• Save proof of delivery
• Keep copies of every form and message

Don't send your only original receipt or another irreplaceable document.

6. Escalate through the marketplace

If the seller doesn't respond or offers an unsuitable solution, use the marketplace's official order-dispute process before its deadline. Upload the evidence requested by that process and select the most accurate reason, such as defective, damaged, or not as described.

A marketplace guarantee is a platform policy. It is separate from a state-law claim, a manufacturer's warranty, and a credit-card dispute. The platform's deadline may be shorter than another available route.

7. Ask the payment provider about a dispute

If the seller and platform don't resolve the issue, contact the payment provider before its deadline. Explain that the product was defective, damaged, or not as described. Don't report a merchant dispute as an unauthorized transaction unless you truly did not authorize the charge.

Tell the issuer or bank about any refund, replacement, platform claim, or partial credit already received. Duplicate recovery for the same purchase is not allowed.

Build an evidence packet

Put the records in one folder so the seller, platform, or payment provider can review the same timeline and documents:

• Receipt, invoice, or order confirmation
• Payment statement showing the transaction
• Photos of the defect from several angles
• Photos of the shipping box, label, and internal padding
• A short video showing a reproducible failure, if useful
• Screenshots of the listing and specifications
• Serial, model, and lot numbers
• Seller and manufacturer warranty terms
• Platform messages and email correspondence
• Return authorization, tracking, and delivery records

Name files with dates, such as 2026-03-02-order-box.jpg and 2026-03-04-seller-response.pdf. Keep the original files and send copies.

A clear explanation of what the listing promised, what you received, and how the item failed is usually more useful than a large collection of unrelated images.

Which rule or policy controls?

Several remedies may overlap, but they aren't interchangeable.

The payment method matters. The FTC's billing-error process described below applies to credit-card accounts. Don't automatically apply its 60-day deadline to a debit card, prepaid card, wire transfer, or peer-to-peer payment.

How to dispute an eligible credit-card charge

A credit-card dispute isn't a guaranteed refund or simply a more aggressive return request. The issuer investigates the transaction under applicable billing-error and card-network procedures.

The FTC says that, to use the federal billing-error protections, your written notice must reach the issuer within 60 days after the first statement containing the error was sent to you. The FTC's credit-card dispute guidance explains the process and provides a sample letter.

Include:

• Your name and account information
• The transaction date and amount
• The merchant name
• The order number
• A precise description of the defect or mismatch
• The remedy requested
• Copies of the receipt, listing, photos, messages, and return records

Send the notice to the billing-dispute address shown on the statement or in the issuer's instructions. Don't assume the ordinary payment address is correct. Keep a copy and proof of delivery.

According to the FTC guidance, the issuer generally must acknowledge the complaint in writing within 30 days unless it has already resolved the issue, and resolve the dispute within 90 days. Follow the issuer's instructions and continue paying amounts that aren't part of the dispute.

For a debit-card purchase, contact the bank promptly and ask for its merchant-dispute procedure. The credit-card billing-error deadline does not automatically govern a defective-goods dispute on a debit card.

Marketplace-specific steps

Amazon

Open the order page and use the current return, replacement, or problem-with-order option. For a third-party purchase, send the seller a written message through Amazon so the platform can see the record.

If the seller doesn't resolve an eligible claim, look for the current A-to-z Guarantee option in the order or help area. The conditions, waiting periods, and filing deadlines can vary by marketplace region, order type, and delivery status. Don't assume that a 48-hour waiting period or automatic decision applies to your order; follow the live instructions shown by Amazon.

eBay

eBay's Money Back Guarantee policy contains transaction-specific eligibility rules and deadlines. For covered issues, the policy generally uses a 30-calendar-day reporting window after the estimated or actual delivery or collection date. It also states that an appeal may be submitted within 30 calendar days of eBay's decision.

Open the issue from the order page, choose the accurate reason, and follow the return instructions. Upload photos of the defect and retain return tracking. Don't close the case merely because a seller says a refund is coming unless you understand how closing it affects your options.

PayPal

Open the transaction in PayPal's Resolution Center and follow the deadline displayed for that transaction. PayPal's dispute process is separate from your card issuer's process, and the available reason codes and escalation dates can change.

If you funded PayPal with a credit card, ask the card issuer about its dispute process before the issuer's deadline. Tell the issuer that you used PayPal and disclose any PayPal case or credit. Don't pursue two remedies without telling both providers.

Shein and AliExpress

Open the order's return or dispute screen immediately and review the current terms for that order and region. Upload photos or video showing the defect, the packaging, the product label, and the difference between the listing and the item received.

Don't rely on blanket claims such as "five days," "15 days," or "60 days" without checking the live order page. These platforms can apply different windows based on delivery confirmation, product category, seller, country, and return condition. Save the dispute number and every message in case you need to contact your payment provider.

For an overseas seller, the platform's process may be the most practical route. Check the seller's location, the marketplace terms, and the payment provider's deadline before choosing an escalation path.

Warranty claims for appliances and electronics

A warranty claim and a refund request are different. A written warranty may promise repair or replacement instead of a refund. It may also exclude accidental damage, misuse, unauthorized repairs, consumable parts, or normal wear.

Read the warranty for:

• Coverage period
• Covered parts and failures
• Required troubleshooting
• Shipping responsibility
• Proof-of-purchase requirements
• Return authorization or service-center rules
• The remedy promised if the product can't be repaired

The FTC explains that the Magnuson-Moss Warranty Act requires warrantors of consumer products to provide detailed information about warranty coverage. For written warranties on consumer products costing more than $15, FTC disclosure and pre-sale availability requirements apply. The FTC's Businessperson's Guide to Federal Warranty Law provides the relevant background.

Contact the manufacturer with the model, serial number, purchase proof, and a concise description of the failure. Ask for the case number and the exact reason for any denial. Product registration doesn't by itself create a warranty, and a warranty doesn't automatically entitle you to a cash refund.

A practical complaint letter

Use the seller's policy terms and the facts of your order. Don't cite a foreign consumer law merely because the seller operates overseas.

Subject: Defective item refund request - Order [number]

Hello,

I received [item and model] on [date] under order [number]. The item is defective because [specific description of the failure]. I tested it by [brief factual description], and the result was [result].

I am requesting [a full refund, a replacement, or a repair] under the applicable return policy or written warranty. Please confirm the return instructions and any authorization requirement by [date].

Attached are the order record, payment confirmation, photographs or video, and relevant listing or warranty information. If this is not resolved, I will use the marketplace and payment-provider procedures available before their applicable deadlines.

Please confirm receipt of this request.

Sincerely,

[Name]
[Email and phone]

A seller letter doesn't replace a written credit-card billing-error notice. If you are disputing a credit-card charge, use the issuer's billing-dispute address and follow its required format.

If the seller still refuses

Use this sequence, adjusting it if a deadline is close:

1. Send one final written request summarizing the timeline and remedy sought.
2. Open or appeal the marketplace case before its stated deadline.
3. Contact the credit-card issuer or bank before its dispute deadline.
4. Check your state attorney general or local consumer-protection office for complaint options.
5. If the amount justifies formal action, review your state's small-claims filing limit, fees, venue, and service requirements.

The FTC notes that small-claims limits vary by state, with some states setting limits as high as $25,000. A government complaint can document a business practice, but it doesn't promise that an agency will obtain an individual refund.

Mistakes that weaken a defective-item claim

• Waiting for the seller while a platform or card deadline expires
• Relying on an unboxing video without explaining the actual failure
• Failing to save the listing before it changes
• Returning the item without tracking or authorization
• Sending original documents instead of copies
• Choosing "unauthorized transaction" for a purchase you did authorize
• Exaggerating the problem or omitting accidental damage
• Accepting a partial refund without checking whether it closes the dispute
• Treating a warranty repair promise as a guaranteed cash refund
• Assuming a platform's policy applies identically in every country

Common questions

Is there a 14-day refund rule for defective online purchases in the U.S.?

Not as a universal rule for ordinary online purchases. Check the seller's policy, applicable state law, marketplace terms, warranty, and payment method. A foreign seller's 14-day or 30-day rule may not describe your U.S. options.

Can I dispute a defective item with my credit-card company?

Ask the issuer about its process for defective, damaged, or not-as-described merchandise. If you are using the federal billing-error procedure, the FTC says written notice must reach the issuer within 60 days after the first statement showing the error was sent to you. The issuer decides whether the claim qualifies.

Should I contact the seller before filing a chargeback?

Usually, yes. A written seller request may resolve the issue, and the platform or issuer may ask what you did to seek a resolution. Don't delay an issuer notice past its deadline while waiting for a seller response.

Does a manufacturer warranty guarantee a refund?

No. The written warranty may provide only repair or replacement, subject to its coverage and exclusions. Read the remedy section and keep the manufacturer's case number.

What if I already received a partial refund?

Keep the refund record and ask whether accepting it settles the entire claim. Tell the marketplace or payment provider about the partial credit so you don't seek duplicate recovery.

Your next step is to save the listing, photograph the item and packaging, and write down the earliest deadline shown in your seller, marketplace, warranty, and payment records.