These aren't unreasonable replies (I agree with them - it was bought unopened, as is, and knowing full-well the circumstances of its production), but, well, it's Ebay.

Was this paid for via PayPal? If so, then they will almost certainly rule in favour of the purchaser, no matter how ridiculous, and transfer the money back. Which is great when dealing with dodgy vendors, but shitty for everyone else if dealing with a dodgy purchaser, which this is starting to resemble.