First I want to say I have had mostly good experiences on ebay.But you are wasting your time getting ebay to do anything to a seller.I tried a couple of times.One of the time it was a poster represented as original.Not only was it a copy(a very good one) so I kept it.But it was also copyrighted & used the Winchester trademark.I reported it to ebay & Winchester the last time I checked the seller was still selling this poster on ebay.
So sue the person if it is worth your time & that is even possible otherwise just leave negative feedback on ebay & take the loss.He will probably leave negative feedback on you if he hasn't already.
If you can email a complaint to one of the performers Brittany for instance maybe they would be able to do more.Of course it wouldn't be a direct email to Britanny but through an official site.Or try her recording label company to email.