Very poor services

A vehicle tracking device was installed in my new car on the 21 February 2022 by one of your Car Track Technicians. I realised that the installed device was not functional when I checked on the Car Track App and called Car Track customer service on Saturday 26 February. I had to keep on calling customer care until I insisted on taking my car to Car Track at Boksburg on the 2nd of March 2022 where a new device was installed. Another device was installed on 28 March 2022 as the device that was installed stopped working. I really do not understand what is going on with Car Track. So many devices being installed in one vehicle in a very short space of time. I called car track again on Sunday the 3rd of April to complain about the device that was not working again, I was told that I would be contacted on Monday the 4th of April. I waited the whole day for the call, at around 15:00 I called car track and was being sent from pillar to post at their call centre. The customer service of this company is really unacceptable. I will not recommend anyone to use your services as customers pay for a service that you are not rendering. When I requested to cancel the contract , I was told that I will have to pay R2600. The lady I spoke with from accounts said that her team leaders would call me yesterday but I did not receive any call. What is it that I will really be paying for because you are not rendering any service and not resolving any of my complaints. You have really wasted my time and my airtime and not given me a good service.