I wouldn't care if the seller accepts it back or not--I'd know I have the legal right to return it. Seller misrepresented it, so I would have it sent back. CC protections would back you the entire way. If you want to take on a headache and sizable cost just because you feel squeamish about it... well, that's your choice. I wouldn't feel bad about it in the least. If someone tries to screw me over, they're not going to hear the end of it.