I have a claim against a seller who lied in an advertisement about what was included, then shipped with bad packaging so the item was damaged. I've initiated a return, which I assume will be approved since the seller admitted to misrepresenting the item in chat. The seller also left negative feedback just because I initiated a return. Clearly, this seller is very untrustworthy.
So my question is, what if the seller denies ever receiving the return, receiving it incomplete, or intentionally damages it and claims I did the damage or didn't package it right (which would be an ironic claim)? This seems like a seller that would do exactly that. In that case, would I be on the hook for the money?