Cancellation and billing issue.

My contract with ADT had come to an end and I decided that I no longer require their services as it was of no benefit to me at all. I phoned their cancellations department to cancel my contract and I was advised to send an email confirming same. I was further advised that the last payment would be deducted December of last year as I have given sufficient notice. <br> I never received any confirmation of my cancellation, and furthermore they kept on deducting money from my account for service that they no longer provided and which I had cancelled. this issue persisted till abut April this year. I sent countless emails to ADT and not once did I receive a response. what is more frustrating is the fact that when I phone them they confirm that received my emails, but they have not been processed yet. <br> Yesterday I received an SMS informing me that my account has been handed over to Debtsource for collection. I am, to say the least disgusted in ADT and they way they run and manage their business. this would never even have been an issue if they just cancelled the contract as I had requested. <br>