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Amazon FBA Seller · 4 months
A US-based Amazon FBA seller shipping wireless earbuds and phone accessories from three factories in Shenzhen was facing escalating chargebacks and negative reviews. Their chargeback rate had reached 4.2% — well above Amazon's 1% threshold — putting their seller account at risk of suspension. Common complaints included non-functional Bluetooth pairing, mismatched left/right earbuds, and incorrect UPC labeling on retail packaging.
Tetra Inspection deployed pre-shipment inspections with FBA-specific checklists covering functional testing (Bluetooth pairing, audio balance, battery charge), labeling compliance (UPC, FNSKU, suffocation warnings), and Amazon packaging requirements (poly bag thickness, carton dimensions). Each inspection included 100+ photos documenting every check for the seller's dispute records. We also implemented during-production checks at the highest-volume factory to catch issues before final assembly.
65%
Chargeback Reduction
Chargeback rate dropped from 4.2% to 1.5% within four months, bringing the account safely below Amazon's suspension threshold.
97%
OTIF Score
On-Time In-Full delivery score improved from 89% to 97% as labeling and packaging errors were eliminated before shipment.
4.1 → 4.5
Review Rating
Average product review rating improved from 4.1 to 4.5 stars as functional defects were caught before reaching customers.
“We were two months from losing our Amazon account. Tetra's FBA-specific inspections caught the exact issues causing our chargebacks, and the photo reports gave us evidence to dispute unfair claims.”
— Amazon FBA Seller
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