I had one of the worst experiences with ebay ever, not at fault by either myself or the online retailer. I bought an mp-04 and right out of the package and twist ties upon transforming optimus prime into the cab I came across a significant problem, the panel housing the lights and rectangular cover were mysteriously missing and there was no sign of adhesive or residue to be found.
This was the sign of the damage, I just pulled this thing out of the package yesterday.
The online retailer wanted to help but I had to pay for the shipping back to australia, and then back to canada, and the duty again which would equal the full value of the toy. I don't know who to turn to.