Big scam!!! Need your help please!

I also got sucked into that membership. They promise the world at the presentation. No one said anything about 8% fee. They told us that they will contact us within 6 days to give use our member ID. I had to call on the 7th day to get it from them. At that time I went on line and checked some products prices and compered. I found out that I can't save anything on the products I wanted, and that this membership does not fit my life style. By then it was already passed the 3 days cancellation period.I called the owner asking him to cancel. I even told him to keep the $290 deposit I gave them to just get out. He refused, and talked in circles telling me that the only thing they can do is help me buy in their club. Now I am stuck with the membership paying every month for something I will never use. I wonder if anyone can tell me if there is any way to can get out of this contract? If anyone did get out and can help I appreciate the help.