Adt ****** that keep on debiting cancelled contracts

I cancelled my service. I have not stayed on the premises for 2 months. I cancelled the service. I have an email confirmation that service is cancelled. But end of May again you took my debitorder. I want my money back. I emailed the company got a reply on 30 May that they will look into it. On 1June I mailed again got a snotty email stating that on 30 May at 4 yoy did answer waiting for feedback. Well I dont care 6 days is now enough I want my money back. You are billing 2 people for the same service on one property as neq owner went on with the adt alarm. I am so dissatisfied. This is ********* and poor service.