I recently bought an amplifier from eBay, and upon examining it on arrival I noticed there was a large dent in the side of the metal casing. It seems that the item was dropped from a fair height, and obviously happened while still packaged because there are no scratches just like a padded bump indentation. I've contacted the seller who I was suspicious of immediately, it's an ex demo item so should have been all right, and he said it was in great condition. It turns out that the cardboard box which incidentally was completely covered in "fragile" tape has a bump mark in the same place as the dent was underneath. I've checked the courier web site and I seem to have signed a slip with tiny little letters at the top saying item received in good condition. Obviously I didn't have time to check it over when the guy was waving the form at me and handing me the parcel saying sign here please. I expect this can concern a lot of people, what are a person's rights in such situations?