I will only do cash.....
I picked up a lovely £50 note printing machine off ebay. Apart from me printing in black ink (not Red - to save money), you'd never tell the difference!
On a serious note, ebay and paypal appear to use absolutely no logic when it comes to their problem resolution.
Plus they always appear to favour the buyer - who can put down any random excuse for refusing an item received.
You then find PayPal are "holding" hundreds of pounds that you have in there (which is "locked" and you cant withdraw or move it), your hands are completely tied.
EBay has become a complete ripoff, I now prefer Gumtree or Shpock, where its a collection only system.
Sounds a complete nightmare
Disorderlypunk - hope you get this resolved and the (returned) bike hasn't been interfered with!