Tracker - unhelpful, an administrative mess.

after sales nightmare, i recently purchased a new vehicle and requested tracker to terminate the traded in vehicle and load the new vehicle which they did for a fee of R1100.00 Which was billed and settled. however i am getting billed for both the new and traded vehicle. the frustration is that the problem cannot be resolved after calling and a number of emails. every email query is responded to with a statement. no explanation no resolve. what a mess. if admin is such a mess at tracker i fear for my life and my families what will happen if we encounter an unfortunate incident. I have 3 tracker contracts. cannot wait for my contract to end.