ebay problem

File a claim. That's what your receipts are for. That's why you paid for insurance. After that, it's on the Post Office. It's a well known fact that the Post Office takes 6-8 weeks to investigate, correct or issue a refund. File the claim, give proof of the filed claim to your buyer. If that's not good enough for him, then that's too bad because that's all you can do, unless you wanna come out of pocket and refund him the money yourself. Then you run the risk of the PO finding and delivering the package and then he'd have the money and the package. That would suck.