These are untrustworthy people who will continue you to charge you long after you cancel your membership.
Even if they tell you that your membership has been cancelled don't believe them.
They will not cancel it the first time you ask.
They have quite a racket stealing a few more payments from your bank or credit card.
Be very careful and make sure to get your cancellation in writing.
Then check your bank account because they will try to steal from you