Usually the easiest way to solve this is to send a written letter, registered mail for like $1.50 or whatever it is now. Then you dispute the charge each time.

Usually the easiest way to solve this is to send a written letter, registered mail for like $1.50 or whatever it is now. Then you dispute the charge each time. It's a pain, but it's a bigger pain for them and costs them more than it does you. Especially once you've documented with that receipt of a registered letter.