Just out of curiosity: what would have happened if you had just stopped paying them after sending them an email informing them that you wanted to cancel?
Its the online version so they have my cc on record and charge me monthly. I guess I could have changed my cc to an invalid one but not sure if they have some sort of authentication process before accepting a new one, likely. If that was possible likely they would cancel it after a couple declined charges but you always run the admittedly small risk that they will just send you to collections which is no fun at all. Even if you are in the right you still have to deal with a ton of annoyance and try and get your credit restored if they report it to the credit agency.
You could probably also have let them charge you and then disputed the charges with your credit card company with your email as proof you shouldn't have been charged.
