Adrenaline Bikes

I ordered a kestrel bike from their website and got a phone call few hours later explaining that bike is not available in my size. Their website let me place the order. I even got a confirmation email with my order details. Also they collected my credit card information, which I am unable to delete from their website. Why did they take my order, if they don't have this bike in-stock? To be clear the very same bike in my size IS STILL LISTED AS AVAILABLE on their website, but at slightly higher price. What kind of scam is this? Cheaters!