Car track faulty installation, damage to vehicle and total disregard of customer's complaints

I requested to be contacted regarding an installation of vehicle tracking device and a dash camera. I received multiple actually over 19 calls within minutes and a number of calls and email confirmation for the installation. This finally happened within 7 days.

However, after this installation my radio stopped giving sound it turns on as normal but no sound comes out. Secondly a huge device the size of a big cell phone got installed right under my rearview mirror and an automated voice which is a huge nuisance keeps talking while I drive directing me how to turn, brake abd accelerate.

I initially booked the same service for both my vehicles but decided not to go ahead with the second car after experience the poor and or bad installation. I have sent over 10 email and made well over 5 phone calls spending over R250 worth of airtime to cartrack and the calls have gate keepers who sit on the phone until my air time runs out each time and at times you would be asked to hold and then they put the phone down.

I got tired of trying to get help and sent an immediate termination of this contract stating my reasons. Now I get a letter of demand for both vehicles which 1st of all , baffles me because they only managed to damage one vehicle not two

The incompetence, poor service and lack of urgency or Customer orientation is extremely concerning. DO NOT SIGN UP WITH THIS USELESS COMPANY.