I had similar problem. I listed my item as Size 8, item specifics - Size 8, Description - Size 8, Posted to buyer - Size 8 Copped a defect for not as described and Comment "Not the expected size".  At no time did the buyer even bother to email that she was unhappy with the purchase. Contacted eBay, they will not remove the defect because it is the buyer's opinion. A load of BS!