Background
A high-volume eBay seller specializing in PSA and BGS graded sports cards came to SlabProof's Verified Dealer pilot program with a specific problem: a dispute rate that had been climbing for 18 months, driven by buyers filing 'item not as described' chargebacks after receiving legitimate, accurately-listed cards.
Monthly volume: approximately 60–80 graded card transactions. Average sale price: $450. Dispute rate: 8.2% — significantly above the eBay category average and affecting seller status.
The Problem
The dispute rate wasn't driven by seller fraud. The cards were authentic, accurately graded, and honestly listed. The problem was buyer-side chargeback fraud combined with genuine buyer anxiety about fraud risk in the market.
“Buyers were increasingly nervous. They'd receive a real PSA 9 Jordan rookie I'd accurately listed, and file a chargeback claiming it wasn't as described. I think some of them genuinely couldn't tell the difference between my authentic card and the fakes they'd heard about.”
The SlabProof Implementation
The seller registered all existing inventory on SlabProof — approximately 200 slabs — using the Verified Dealer bulk registration tool. Each listing was updated to include the SlabProof ID, a direct link to the public provenance page, and the Verified badge in listing images.
What Changed
Dispute Rate
Over the following 90 days, the dispute rate dropped from 8.2% to 3.1% — a 62% reduction. The remaining disputes were all buyer-side fraud, but with SlabProof's timestamped registration records, dispute resolution became significantly easier.
Average Sale Price
Average sale price on SlabProof Verified listings increased 12% relative to the prior 90-day baseline on equivalent cards. Buyers were willing to pay more when they could verify.
“The $29.99 a month pays for itself on a single prevented dispute. Everything else is upside.”
Key Takeaways for Dealers
- —Provenance verification reduces buyer anxiety — and buyer anxiety is a primary driver of both hesitation and post-sale disputes
- —Documented provenance changes the dynamic in eBay dispute resolution — you have evidence, not just a claim
- —The trust premium is real — buyers pay more for verified listings on equivalent cards
- —Bulk registration is fast — 200 slabs took approximately 4 hours with the Verified Dealer bulk tool