Adt Protectron - Out of Business

I wish I had read the reviews for ADT Canada BEFORE I received their services. My home already had the ADT equipment installed. Everytime I have called in, they do not have my telephone number on file, and tell me that I am not a customer. I did not sign a contract, I would like to cancel, but they are extremely rude on the phone, and do not allow you to speak with whomever it is you need to talk to, to cancel your service. They send you to a collection agency, and even then it is difficult to determine if you are actually cancelled. I paid my bill but was very unhappy with the costs, and lack of customer service when you have an issue. I seem to have two different accounts, extra charges for services I did not agree to. The one time I put in the wrong key code by accident, I immediately called in my mistake, but it took so long to get through and then explain, that I was a CUSTOMER, because they do not have the correct phone number on file, the police came, and I had to pay for a false alarm. Extremely rude and unprofessional customer service agents, and if you need to speak to the accounting department, they won't even put you through to them. Then they keep charging and charging. It is difficult to determine what the cancellation fee is??? Is it paying your whole yearly fee, because you want to cancel. Every review is terrible.
I am getting letters from two different locations telling me my account which I would like to cancel is overdue. Yet I wanted to cancel from over a year ago.