Big oof on that one. While I certainly get that shipments go missing all the time- I can't tell you how many times I've had something say it was delivered and either signed for or left at the front desk, when my building only has 3 apartments and no front desk- that one feels a bit too iffy to me. Given the price, it feels like maybe the person regretted spending the money but wanted the thing anyway, so filed a claim. I hate how quick ebay is to take the side of the customer. The whole "customer is always right" mentality, which is misquoted anyway, really is one of the most damaging ideas that's ever been implemented. The second I hear that leave someone's mouth, they've lost all credibility to me.
Not at all similar, really, but it reminds me of a case I had the other day. I got an offer for something I was selling on ebay. Negotiated a price that was in between the offer and my asking price; I was desperate enough to sell the thing that I accepted a bit less than I wanted. Person accepted, so I boxed everything up and waited for the payment to go through so I could get a label. Check back later that day, the person had cancelled the order. An hour went by and the same person sent another offer for about $15 less than the price we agreed upon. Like.... why accept the original offer if it wasn't what you were willing to pay? Why waste both our time? But some people really just want to have their cake and eat it too.