Every year, consumers file hundreds of thousands of complaints about online retailers—with the Better Business Bureau, with Trustpilot, with the FTC, and with ratings platforms like ours. Most complaints cluster around a handful of recurring problems: orders that never arrive, products that don’t match the listing, refunds that stall, and customer service that loops you in circles.
We pulled BBB complaint data, Trustpilot sentiment, ACSI (American Customer Satisfaction Index) scores, and RatingFacts’ own verified review records to rank the 10 most-complained-about online retailers of 2026. The list is data-driven—not a “worst brands” hit piece—and every entry includes the concrete complaint pattern behind it.
TL;DR: ultra-fast-fashion and discount marketplaces (SHEIN, Temu, Wish) dominate complaint volume, while the biggest mainstream names (Amazon, Walmart, eBay) appear because of sheer transaction scale plus specific marketplace-seller problems. Complaint volume is not the same as scam risk—but a high complaint count with a consistent pattern is a real signal.
How We Ranked These Retailers
We scored each retailer on four weighted signals (data as of mid-2026):
- BBB complaint volume (last 3 years and trailing 12 months) — the single largest official consumer-complaint database in the U.S.
- Trustpilot sentiment — the share of 1-star reviews versus the TrustScore.
- RatingFacts verified reviews — our own moderated scores from real buyers.
- ACSI online-shopping score — the industry’s benchmark satisfaction index.
Retailers are ranked by the volume and intensity of complaints relative to their size. A retailer serving 200 million customers will naturally accumulate more complaints than one serving 5 million—so we weigh per-customer complaint rates and the concentration of complaints into serious categories (undelivered orders, refund refusal, quality fraud).
10. Etsy
Score: 3.5/5 on RatingFacts (129 verified reviews). Etsy’s complaint profile is unusual: the platform itself is well-liked, but fulfillment complaints target individual sellers—items that never ship, custom orders that arrive wrong, and shops that disappear after taking payment. Etsy’s buyer-protection program covers eligible orders, but the claims process requires documentation, and resolution times frustrate buyers who paid weeks earlier.
Main complaint pattern: seller-side fulfillment failures and slow dispute resolution on the platform.
9. Walmart (Walmart.com)
Score: 3.6/5 on RatingFacts (141 verified reviews). Walmart’s marketplace has grown explosively, and with it a familiar marketplace problem: third-party sellers with lax quality and delivery standards. Complaints target mis-shipped or counterfeit-looking items from marketplace sellers, delivery-date misses on scheduled slots, and refunds that require multiple contacts. Walmart’s own fulfillment is generally reliable—most complaints trace to marketplace sellers and to in-store pickup glitches.
Main complaint pattern: marketplace-seller quality variance and pickup/refund friction.
8. eBay
Score: 3.5/5 on RatingFacts (140 verified reviews). eBay is the OG marketplace, and its complaint profile is stable: item-not-as-described and shipping problems. eBay’s Money Back Guarantee resolves most claims in the buyer’s favor, but the process is slower than buyers expect, and dispute friction with international sellers—long ship times, language barriers, return shipping costs—dominates negative reviews.
Main complaint pattern: slow dispute resolution, international-seller shipping issues, occasional counterfeit or misdescribed goods.
7. Best Buy
Score: 3.6/5 on RatingFacts (141 verified reviews). Best Buy is the highest-satisfaction mainstream electronics retailer here, but it still earns complaint volume through order-fulfillment issues on hot-ticket items—items marked in stock that are then delayed or canceled, delivery windows that slip, and price-match disputes. Because electronics are expensive, a single fulfillment failure produces a loud complaint.
Main complaint pattern: order/delivery fulfillment failures on high-demand electronics and price-match denials.
6. Amazon
Score: 3.6/5 on RatingFacts (138 verified reviews). Amazon processes billions of orders, so even a tiny failure rate produces enormous absolute complaint volume. The recurring patterns: third-party sellers with misleading listings and substandard goods, used items delivered as new, and refunds that require escalation for marketplace purchases. Amazon’s own fulfillment is reliable; the complaint heat concentrates in the "Fulfilled by Amazon but sold by third party" gray zone and in account-suspension support for sellers. ACSI places Amazon near the top of online retailers for satisfaction—yet its raw complaint count is among the highest anywhere because of sheer scale.
Main complaint pattern: third-party listing quality variance, hard-to-reach human support, and marketplace refund friction.
5. AliExpress
Score: 3.6/5 on RatingFacts (140 verified reviews). AliExpress combines very low prices with long, variable delivery times and inconsistent product quality. Complaints cluster on items that don’t match photos, packages that take 3–6 weeks or never arrive, and a dispute system that often refunds only part of the price. It is legitimate—but its cross-border fulfillment model produces one of the highest per-purchase complaint rates in the market.
Main complaint pattern: slow/split deliveries, quality mismatch, partial refunds in disputes.
4. Wish
Score: 3.6/5 on RatingFacts (137 verified reviews). Wish built its brand on absurdly cheap goods, and its complaint profile follows: products that look nothing like the listing, long shipping times, and promotional confusion (coupons and credits that require further spending). Independent sentiment analysis ranks Wish among the highest negative-review share of any major marketplace—roughly 58% of analyzed reviews negative—making it a poster child for the "cheap but frustrating" category.
Main complaint pattern: quality mismatch, slow delivery, confusing promotions and credits.
3. AliExpress-owned categories and drop-shippers
Honest caveat: our #3 slot is really a cluster. Scores of drop-shipping stores fronted by AliExpress/Wish-style suppliers dominate BBB’s "online retailer" category—unknown-brand storefronts that advertise on social media, take payment, and ship low-quality goods weeks later. They aren’t one company, which is exactly the point: the fastest-growing complaint category of 2026 is “social-media storefront” rather than any single brand. When you see an ad for a $19 gadget from a name you’ve never heard of, you are most likely looking at a drop-shipper—and the BBB data shows these generate a disproportionate share of unresolved complaints.
Main complaint pattern: unfulfilled or inferior drop-shipped orders, hard-to-contact support, no refund path.
2. Temu
Score: 3.6/5 on RatingFacts (141 verified reviews). Temu is the fastest-growing marketplace on the planet—and one of the most-complained-about. Its complaint volume spans product-not-as-described, multi-parcel split shipping, refund friction, and aggressive free-gift/cashback promotions that reviewers describe as misleading. Beyond consumers, Temu has drawn regulatory heat: a $2 million FTC penalty for INFORM Consumers Act violations (2025) and multiple state attorney-general lawsuits over data collection and deceptive practices. Independent analysis finds roughly 46% of Temu reviews negative on trust platforms.
Main complaint pattern: listing mismatch, split slow shipping, promotional loops, and an active regulatory record.
Full analysis: Is Temu Legit or a Scam? 2026 RatingFacts Verdict.
1. SHEIN
Score: No RatingFacts reviews yet—but BBB data is the loudest on this list. SHEIN is the #1 most-complained-about online retailer in our dataset, driven by BBB filings: the company has accumulated 7,211 total complaints over the last 3 years, with 3,920 closed in the last 12 months alone (per the Los Angeles BBB). The complaint themes are consistent: orders that arrive much later than promised, items that don’t match the listing, refunds that require repeated contact, and quality issues with sizing and materials. SHEIN’s ultra-fast-fashion model—massive catalog, third-party suppliers, low prices—produces complaint volume that dwarfs most competitors. Independent sentiment analysis puts roughly 38% of its reviews negative, and ACSI and Trustpilot data confirm a low-satisfaction, high-friction profile.
Main complaint pattern: late deliveries, size/quality mismatch, refund friction—at industry-leading volume.
The Common Thread: Marketplace Fulfillment, Not "Fraud"
Look at the top of this list and a pattern emerges. The most-complained-about retailers of 2026 are overwhelmingly marketplaces that connect shoppers directly to third-party sellers—with low prices, thin quality control, and support that is heavily automated. The complaints are real, but they are mostly about expectation mismatch and slow service, not criminal fraud. Only a smaller subset of cases—undelivered orders, refused refunds, no contact path—rise to the level of scam behavior.
That distinction is why we built RatingFacts: a ratings platform where complaints are verified, moderated, and attached to the real company behind the storefront—so you can tell the difference between "annoying but legit" and "you should not send them money."
How to Protect Yourself at Any of These Retailers
- Check BBB and Trustpilot before first purchase—especially complaint counts over the last 12 months, not lifetime totals.
- Read the most recent 1-star reviews. Old complaints age out; recent patterns tell you what’s happening now.
- Pay with a credit card so chargebacks remain available if a refund stalls.
- Screenshot listings and prices at checkout in case the delivered item differs.
- Set expectations: marketplace + rock-bottom price = higher risk. Budget accordingly.
- Verify the company on RatingFacts — see its verified score, complaint history, and ownership before you enter payment details.
Frequently Asked Questions
What is the most-complained-about online retailer in 2026?
In our dataset, SHEIN leads by BBB complaint volume—7,211 complaints over the last 3 years, 3,920 closed in the last 12 months. Temu, Wish, and AliExpress follow, driven by marketplace quality and delivery friction.
Does a high complaint count mean a retailer is a scam?
No. High complaint volume at huge-scale retailers (Amazon, Walmart) mostly reflects transaction volume. But a high count with a consistent pattern—undelivered orders, refund refusal, no contact path—is a genuine risk signal that should change how you buy.
Which online retailers have the most complaints about refunds?
SHEIN, Temu, and Wish lead for refund friction in our data, followed by AliExpress. The common cause is automated support and marketplace seller structures where the platform must chase the seller before refunding you.
Are Temu and SHEIN safe to buy from?
They are legitimate companies that deliver most orders, but both carry high complaint rates for quality mismatch, shipping delays, and refund friction—and Temu has an active regulatory record. Buy small, low-risk, disposable items, and use a credit card.
How does RatingFacts measure complaints?
RatingFacts moderates verified reviews from real buyers and scores companies on the same E-E-A-T framework we use for every business: ownership, payment security, complaint patterns, review scores, and regulatory history. See our methodology on any review page.
Methodology & Sources
This report was produced by the RatingFacts Editorial Team (author: Nina Kowalski, Data & Rankings Analyst). Rankings synthesize BBB complaint data (last 3 years and trailing 12 months, as of mid-2026), Trustpilot TrustScores and sentiment, ACSI online-shopping satisfaction scores, independent review-sentiment analyses, and 1,000+ verified reviews collected on RatingFacts. Complaint counts change monthly and vary by region; treat all figures as directional evidence rather than absolutes. A retailer’s rank reflects complaint volume and intensity relative to scale—not a legal judgment.
