Deeply disappointed

I am deeply disappointed; it has been now 3 weeks since instalation and a faulty tracker has been installed ; a technician had come out and reinstalled the faulty tracker saying to me it is all fine when in fact it is still faulty I have traveled now over 1000 km with a faulty tracker and seems it is a mission for the company to replace and fix it. I want this seen to ASAP as I work in a high danger zone and hopefully this will get Cartrack to do the job properly cause my patience is running thin.