Come on, Amazon.com!!

So about a week or so ago I ordered The Physics of Dance by Kenneth Laws (I'm pretty sure that's the author's name) on Amazon.com. I always order books off of Amazon because they offer great prices and they come in the mail relatively quickly. Well, my Dad gets the e-mail confirmation/credit card bill and it said that I ordered 2 books.. The Physics of Dance and The Decameron. I never ordered The Decameron, I never even searched it on Amazon. Well this weekend, a box came in the mail from Amazon and low and behold they sent me the Decameron. And they won't send me the book I want, but my Dad's credit card has already been charged. This is just silly.