You Posted the book twice
What to do in this case: If you used two different ISBNs (or one ISBN and one non-ISBN listing), you should accept the request for the correct listing. If you posted the same ISBN twice, you should complete the first request and decline/cancel the second if you do not have two copies of the book.
If this is the case, you can just choose one of the requests to accept, and decline the other one. If you aren't sure about this, you can contact us using the "feedback" button on the Contact Us page for help.
OR: The requestor submitted two simultaneous requests
If this is the case, you can just choose one of the requests to accept, and decline the other one. If you aren't sure about this, you can contact us using the "feedback" button on the Contact Us page for help.
Related links:
How to remove a book from your Bookshelf
Solutions to common Book Posting Problems