UNFAIR CUSTOMER SERVICE FROM CARTRACK TO A LOYAL CUSTOMER FOR 7 YEARS

I called the head office yesterday 18/02/2020 asking assistance with my wife's car that something is hanging on the front passenger side and it looks like a tracking device and explained to them that She needs to leave a car somewhere as she will be hiring a rental car and her car will have to stay there overnight and its RISKY to leave a car with that device hanging as everybody can see that its a tracking unit, all i asked is for them to try secure the unit back where its not visible to anybody and they ask R600.00 just for that and tell me their unit is out of warranty

I have 3 vehicles fitted with their unit and i have never defaulted payments in 7 years with them, surely that's loyalty and recently i have bought a car last year 2019 in March and also installed their unit and now i'm bound by their unfair contract for the next 3 years on just one car, I TOLD THEM TO CANCEL THE 2 CONTRACTS.