I signed a contract with Platinum Protection for a Monironics home security system. After about a year it wasn't working properly and I called Platinum several time to send someone out to check it out. No one ever came out. In march of "08 I called them and told who ever answered the phone the whole story and that i would be sending a letter to cancel my contract. Which I did. I kept getting bills and returned them unopened but written on them "Contract cancelled." Then earlier this year as I was going out the door the alarm went off right in my ear. I looked it hitting buttons to make it stop. ( I ceased using the system) Then the phone rang it was the fire department asking if there was a problem, I said no it was a faulty alarm. I hung up and the alarm stopped. again the phone rang and it was Monitronics. I told them what happened and that I had canceled the account because it was malfuntioning. Another call from anothe rep., another retelling of the story. No one ever came out to reset the alarm. It still shows fire alarm on the screen. Now I have received a letter from a collection agency. They have said they would send me a copy of the judgment, etc. This will go against my credit. How can I get them off my back once and for all?