I sold a dress recently on EBay. The buyer was really slow to pay, but did eventually.
I posted dress first class, with proof of postage. They have now raised a case on EBay, saying it never arrived, but have made NO communication with me! I've tried to contact them, to check whether its arrived since, however they are not replying. I have to resolve the case today, so I'm guessing I have no other option other than to refund? I can risk my ratings. However it pisses me right off as it stinks of fish.
Note: if they'd contact me I would feel that their plea is more genuine. However I have had radio silence from them - just a case raised.
Time to give up on EBay I think...