Bad customer service and lack of communication by ADT fedelity

ADT fidelity has just debited my account with an incorrect amount and it was twice the amount for my monthly service fees. When I phone ADT I was told it was a annual fee, my question to them was, I am their customer they should have contacted me or send an email as a reminder to their loyal customer's. They just can't come and go as they please in my account, their customer service is pathetic and it's unfair to customer's to just see an unfami**** debit order out of my account.