ADT Security extremely poor customer service

Extremely poor service and deducting debit orders without consent. On weekend of 13-14 February house alarm activated several times when we were out of town. ADT phoned me several times but could not give detail which zone activated the alarm. On my return I found ants was the problem. ADT then send a sms informing me that I will be billed for excessive response - as stated in my contract. I asked the lady to send me a copy of the contract and to date I've not received it. Today ADT deducted money from my account via a debit order.