Brazzers.com (billed by manstermed) practices "1 dollar trial" scam. The trial lasts for two days, and if not cancelled, it will update to regular membership costing $40 a month. After you have bought your trial, you won't be able to cancel it by any means. The cancellation forms at their pages don't work and if you try to e-mail them, an automatic response will tell you to go on that same page that doesn't work. Telephone numbers won't work either, you can listen the waiting music for hours, until their office closes. There should be some "online chat help", but no one is never online to help you.
So, the only way to stop them from billing you is to close your credit card. I strongly recommend that you NEVER give your credit card number to manstermed. It's a bit strange, that manstermed.com doesn't even exist, tells something about the company.
I hope people will rise up and mass sue the company.