You can sign up to have payments deducted monthly, but I think you have to cancell your membership and set up your form of payment each time after you cancell. If you don't cancell payments continue to comeout.
I believe you get a refund if not satisfied, but I think if you got a lot of use, but are cancelling for budget reasons, etc. you shouldn't ask for your money back - just me ...an integrity thing.
Like if in the month you got to see how ten or 15 songs are played by their instructors, like Susan McCormick, perhaps you utilize her Holiday Songs instruction which even has tab, but decide to cancell, I'd let them know you don't need the 60 day free trial, but that is up to each customer to decide.
TiminOhio