SO DISAPPOINTED BY CAR TRACK

I have been with Cartrack since April 2018,which i religiously pay for on a monthly basis. I recently went to KZN(1ST time using the car that's got their TRACKER).I basically drove for 6hours ,stayed there for 3days ,got worried when they did not even call to check if i was OK. I then took it upon myself to call and find out if they managed to even pick that up. I called them 3 times, with each one of the consultants (who were very rude and not so helpful and promised to get back to me.4 DAYS later ,i am still sitting here with no feedback/ even a call to check up on the car. What exactly am i paying for, is this what is going to happen if i happen to be hijacked or anything of that sort and i need help to track down the car? How do i cancel this useless subscription and go with a different option?