There should be some more experienced posters come along soon to help.
The only thing I can think to do is follow through with the return and
if it's different than what you sent call ebay again and point out the
seller's listing for your item. Dom't...
I would call into ebay on this and have them look at the isting the
person has up for sale does the item have a unique serial number and is
it shown in both your pictures and in theirs in the listig? Also report
the buer for abuse of the money back g...