Unacceptable Client Service - Tracking unit remova

I logged a call for removal of my cars tracking device last year, no record of call exists at Netstar conveniently, and device was not removed from old car even though an appointment was made to have it removed with me and the dealership. Agent says i should have removed it. - How would i do that ?<br> Now Netstar is still debiting me for a device that i don't have and i have no tracking device on my new car which is worth over R1,4 mil and my insurance company currently will not cover theft.<br> Yet i am an old customer with devices still on other cars. Netstar wants me to pay for the remaining contract for the device but i need a new device on my new car so basically i have been paying for a device and service i have not had for 6 months.