Cartrack poor Customer service

I am facing several issues with the Cartrack customer care and scheduling department. I have been a customer for more than 6 years and am disappointed with the customer service. I purchased a new car on September 25th, but they only collected the old unit from my old car on October 1st. I received an SMS saying that the new unit would be installed on Saturday, September 28th, but I am still waiting. I have been calling them and they put me on hold for 30 minutes I called back in total, and I was on the phone for an hour and 10 minutes. They claimed that all the managers had gone home at 15:00, and when I asked to speak to a supervisor, I was put on hold for 20 minutes and then the call was dropped. I am extremely unhappy and am considering switching to Matrix / Netstar because of their better customer service. Furthermore, Cartrack has blocked me from contacting ***. If my car gets ****** in the next week or so, I don't know how long I will have to wait for them to install the unit in my new car. I will hold Cartrack responsible for any such incidents. The personnel are rude and put you on hold for more than half an hour, then they have to answer again then put you on hold again.