Disgusting Service- Deserves less than 1 star

I have made an appointment with Netstar on the 11th of December 2023 for the 14th of December 2023 to check on the Tracking Unit that was installed on my Brand New vehicle which was purchased from Hyundai Durban South. The tracking unit was fitted at Hyundai Durban South and we have complained that there is no signal from unit as we cannot view the vehicle on the Netstar App. The panic button was pressed twice , however there was no response from Netstar.

We have been making countless calls to people from Netstar, however nobody can assist and we are just being told to call other people, It is not our responsibility to contact your staff to find out their whereabouts. As a customer I DO NOT expect this type of disgusting service. My Unit has been paid for in full. How can I expect Netstar to track my vehicle when you cannot keep a track of your own staff?