Couples Therapy Exposed review: Fake charges, so don't order from them

I ordered for the E-book to the company Couples Therapy Exposed. It cost only $18.99, but they started to take money from me. I checked my balance on the next month, and it turned out that they charged, after that the same rubbish. I want to stop these fake charges, so please help me. I wonder if there are people, who had the same thing. Maybe you can advise me how to stop these withdrawals. Please post your ideas and comments. Thanks.