I had the exact same thing happen as Mark from Iowa reported at the following site:
What was supposed to be a $365 credit for me to get a laptop computer as a settlement in a class action lawsuit ended up charging my credit card the full price for the computer. There is no way to contact the company to cancel the order or make any changes. At this point I am stuck, but will contact my credit card company to dispute the charges. I don't know if it will work or not.
If you try this, be sure NOT to give any credit card information. If you provide it, you will be charged.