books on back order?

<p>About 2 weeks ago, I ordered the Chem 14B book from the UCLA store and they sent me an "order confirmation" email as usual...except they said that the Chem book was on back order. They also said that if that order wasn't filled by the 3rd or something, they would cancel it. Is it likely they'll get the book in time for classes or should i try getting one off of ebay i'm kind of confused because i'm sure they know that A LOT of people would need that chem book..</p>