The book I ordered was supposed to be hardcopy.  However, I received a paperback copy instead.  It's in great condition, but it's not what I requested.  I accepted it but sent a PM about my disappointment.  Wondering now if I should have accepted it?  Still kind of upset over it becuase I've always had great experiences in the past and never expected anything less.  It's not the same ISBN number, cover is different, and I see per the footprint that someone sent HER the hardcopy book she listed.  Am I being petty??  

Kim, for future reference, these should be marked as "Received with a Problem" with "Wrong Book" as the reason.  You can still try talking to the sender about it.

You're not being petty -- all books posted as required to match 4 criteria: author, title, ISBN and binding. 

There are details in the Help Center under "There's a problem with a book I received!"

What Elizabeth said.  And by marking RWAP, you are returned to the wishlist in your original position.

My guess is she received the wrong book as well and didn't complain and just passed it on.  The old "that's the way I received it from PBS and so you should be ok with it" excuse.