Faulty equipment

My system was installed in April 2014, the battery was faulty after the installation I called in and they wanted to charge me a call out fee and after fighting the charge the team leader relaized that it was reported earlier. <br> Since then I've had to pay for a replacement sensor.<br> <br> Now in Oct Im still getting flase alarms technician came out on 30 Sep 2015, said one of the zones are blown so he moved the zone. The next day I called in again to find out why the zone is blinking this is very irritating at night. He said he will call me back but never did. I had a false alarm on 7 Oct 2015 and had to rush home. ADT responded 10 minutes after the alarm went off, I called ADT technical again to check if a technician is going to come back to check - the system is faulty - I will not pay for a technician to come out again to check because it seems like the technicians and call centre agents do not realize that people have got to work amd faulty equipment means time off from work. Furthermore when I called on 7 Oct the call centre agent assured me someone will come out on 8 Oct to check the system. Its now 9 Oct and no response. Really bad service.