I stopped with ebay last year after a seller by-passed the complaints procedure and complained to ebay direct over non payment. The payment, a cheque, was sent through the post and it never arrived it seems.
So instead of contacting me first, as they were meant to, to see what was going on they decided to complain direct to ebay and first i knew i had a problem was when the ebay complaints mail came informing me what was going on.
When i contacted them they thought i should have been more interested in why a book hadn't arrived than my life and it's issues. At that time i was getting over the separation bombshell from my wife so ebay was the least of my worries.
I did make a complaint to ebay stating at no time did the seller contact me over the lost payment but nothing ever came of it. Still it isn't any loss as ebay has gone downhill and will not recover as it is a scammer/liars/conning paradise for people.
Only place i will ever sell any stuff now is in the members market here.
SCM