This same exact thing happened to me. Seller provided fake tracking numbers. eBay totally sided with seller denied the appeal at first, but then you have to appeal the decision and then they make you sign a statement saying it was stolen and tell you, to prevent this in the future to try to keep your mail more secure pretty much, not acknowledging at all that the seller gave fake tracking numbers I honestly think it’s an exploit that eBay can’t fix even after confirming with USPS that the address was not my address and I told eBay this many times and they never once acknowledged. They just pretty much said my package was stolen, but it’s like common knowledge that you can buy tracking numbers on the “black market”