Today I received a paperback version and NOT the hardback version of a book I recently ordered.  Now, I am 95% sure that I chose the hardback version because I am particularly interested in keeping this book and not swapping again.  I know it is used, I'm not concerned about that, but I wanted the hardback so that's what I chose.

But before I ask for a credit refund and say it is a problem, I want to verify that I made this choice.  How do I verify the listing I originally chose?

Thanks!

Tibben nailed it.

Yes, what Tibben said  From your home page, you should be able to access information on the book, such as ISBN and binding.

The RWAP, wrong version gives you the option to go back to your position on the Wish List. 

And it could be that the publisher used the same ISBN for both.......there have been several complaints here recently about that. But the person posting the book needed to make sure the book type also matched so if it said "hardcover", even if the ISBN was the same, that had to match also for it to be properly swapped.