There are a lot of fake Pandora items for sale on eBay, just to warn people. My former colleague used to have a Pandora charm bracelet and her DP bought her some charms from eBay which were obviously fake when they arrived.
I once bought an old dress, which was actually a bridesmaid dress from a shop where it had allegedly been a sample. When it arrived it looked nothing like the pictures and was so grim, dated and old fashioned with small tears all over it, I just thought "you bought this at a car boot or somewhere and have sold it on". It also came wrapped in a bin bag and they had charged me something like £15 postage and packaging 
. I did get my money refunded, but they were really shirty about it and all "it's a high class item, so make sure you donate it somewhere nice" etc. I was like, if you pay me £15 I'll post it back to you. No response. Grim fuckers.
Also had people claim never to have received items, and they just sounded so like they were lying in the way they worded their messages. Obviously, I had to refund, but you know.
I've refunded people in the past, with very little bother at all, but I knew this one was trying it on. Always for signed for.
Also had someone ask to return a dress because she didn't suit it 
. It wasn't expensive so I just told her to keep it, and just kept the postage, but really.
Oh and we bought a pushchair from there for dc and the man was so arsey that we had "got a real bargain there - it cost x amount new". Massiveky took the hump because we'd won it in an auction and he expected it to go for loads. It hadn't. I think I may have been one of two bidders.
I've gone right off it tbh and cancelled my account not long ago.