Every item listed on EBAY has a REPORT ITEM section on the page on the right hand side. Just click on it and follow it through.
If you feel the CD is a fake then everyone should REPORT IT.
That's the only way to stop someone getting ripped off by EBAY, they don't know it's a fake. It's over £80 allready, it could even be someone on here you're helping.
Cheers
Barry