I’m with the people who think that the buyer is a scumbag fishing for a partial refund and wants to keep it because there’s nothing actually wrong. I’ve been selling on eBay for 20 years and have perfect feedback and have seen my fair share of this tomfoolery.
Offer the refund but make it contingent upon safe and timely return of the product and see what they say.
Offer the refund but make it contingent upon safe and timely return of the product and see what they say.