MY TRACKER company not honoring their word.

Zero Stars really. I wanted my system replaced as it was faulty. They made a date and time with me. They advised me that if I didn't honor the time they would charge me R250.00 call out fee. I agreed that was fine. The installer called me 5 minutes past the installation time (10am on a Saturday morning) to tell me his installer was off ill. I had made the effort to be there for them but they wasted my entire morning. I called tracker to advise them of the above story, to which they said they would escalate my problem. I told them I will live with the system as it was and they must cancel my renewal and installation. Today I tried to access my tracker and i has been discontinued. At no time did I say they must cancel my tracking system as it is part of my insurance agreement. They did not call me back and I did not cancel my tracking system. Really bad service