Poor service quality

I had a cartrack unit fitted 14 April 2016, on 21 April I started getting call from cartrack saying that my early alert had gone of, but I was driving my vehicle at the time, but thought nothing of it, on the Friday thereafter this happened twice within 20minutes, I then phoned to have my unit tested as I suspected that it was faulty, the lady said that the unit it self was fine an tracking but she could see that the early alert remote was faulty and had been deactivated, I asked to log a call to have it fixes I was advised that it was too late, I phoned the Saturday where I logged a call and was told someone would phone me to arrange for repair, on Monday late morning no one had phone so I phoned again and I was advised that they could only help me on that Thursday I advised that I was leaving for mozabique the Tuesday morning and they needed to fix it before we went, I was told that a tech would be by at 18:00 to fix the problem... yet no one pitched, no one phoned to explain why, that Tuesday on my way to the border I phoned to find out what happened, no one could tell me why the tech did not show, I scheduled a repair for today 05.05.2016 at 8am.... at about 9:30 I phoned to find out where the tech was, I was informed that he had phoned in sick.... soooooo if your tech doesn't show you don't phone your scheduled clients to advise that no one would be there to fix my unit.. my car is insured under the pretence that the early alert is working, if my car is ****** and the early alert does not work my insurance WONT payout, and then you WILL be liable I cannot for the live of me understand how you schedule an appointment with a client twice and you don't pitch, no phone call nothing... someone is supposed to come today the lady from the Pretoria branch said she will see what she can do. this is unacceptable... this is the worst service, if I had a choice I would have you come an remove this unit, luckily for you cartrack is the accepted service provider for my insurance, so I have no choice... disappointing to say the least... lest see if I will get a response to this, I highly doubt it, as customer relation and service is not your strong point