Alarm nt working

Since last year august my alarm has nt been working, I called Chub to come sort it out and someone came and changed the battery, I told them the problem is not the battery but I cannot arm my alarm. I called them again and they sent someone while I was at work, he checked and called me to say it was working. I get home and I still cannot arm my alarm. I call the manager and he said no I don't know how to use the alarm and so he will send me someone to teach me, mean while i've had this alarm for years. A guy came to my house to teach me and he had same problem as I did, he said there is something wrong with the cables and so he left. After a few days I call the manager again and i asked if he asked the guy what happened wen he came to my house, he says No. Well, I told him that he said my cables are faulty but he still did nothing to help. I've been calling and begging them to fix my problem but no one cares, I've been billed for every trip they make to my house. How am I suppose to pay them when they still haven't fixed my problem, I am now angry because I pay Chub annually every year without fail yet I get NO service from them. My family is not protected BT I've paid.