Netstar fitment certificate but no Tracking device in my car!!!!!

So i bought a new car in March. i was told by the dealership that the car comes with a tracking device from Netstar. It will be a Netstar Nano device. on the 23 of March i received a Fitment certificate from Netstar stating that the Nanp Tracking device have been fitted into my vechile by DVM Tracking and Celluar Service in Roodepoort. Funny my car never left my sight since i collected it from the dealership till date, nobody came to me to fit any tracking device. I Called Netstar 4 times already and every one is telling me they need to investigate what happended. Lee-Anne promised to call me back it now 2 weeks still no update from her either. They got paid Cash for this device and now i dont get any service or help from them. How can we trust Netstar with our valuables which we pay lotsa money for every month??????