Do not rent a book for class from Barnes and Noble...

Do not rent a book for class from Barnes and Nobles! They will advertise that the book comes with a cd however the assess codes don't work! What is the point then? I called customer service and I can send this one back to get another book with hopes that the access code works. I do not have time to do this as it will take until next Monday for me to get that book and I will already have an assignment due. If that books access code doesn't work I would have to repeat this again! I would not have purchases this book if I knew the access codes didn't work! What a rip off Barnes and Nobles!