ignored client trying to cancel

<p>I have cancelled my contract with ADT 2 months ago, I did this after speaking to several people and sending numberous "cancellation letters". I assume this was done out of courtesy as they have still ignored this request and to date I have not heard anything from ADT. </p> <p> </p> <p>I have since cancelled my debit order as this seems to be the only means I had in my power to cancel my contract. I now get sent messages to tell me that my account is in arrears. WHAT ARREARS??? I DON'T HAVE A CONTRACT WITH YOU!!!</p> <p> </p> <p>Never in my life have I dealt with such incompetance. Thank goodness I never have to deal with your complete disregard for a person's request.</p>