Terrible service by Netstar

I joined Altech netstar in Feb to install the tracking device for a jeep, all was well, however all the installments were taken yet I was told I am owing. In April I installed another tracking device on my jaguar, including was a panic button to inform them when I experience problems including hijacking or theft. on the 1st of June in the afternoon as I was going home in east rand, I went to the local garage to get cash, unaware there were cars following me to the garage, I was made aware by the petrol attendant and the owner of the car who was standing behind me at the ATM, i ran inside the garage shop for safety, i tried calling netstar but was told that they cannot pick up my car location and the reason being i was not inside the car, the lady i spoke to insisted that i should go inside the car despite the fact that the people were waiting outside the garage shop for me, i run to the car and pressed the panic button whiles i was on the line with her, she did not even asked me to drop the fone and call me back, as soon as i was in the car i pressed the panic button and she acknowledged that she can see where my car is, i asked her what is the next step as i cant go anywhere, she said they cannot call anyone to come and assist as my car is not yet hijacked, i was so afraid i went back to the shop, at that time everyone around was panicking as the ******s were waiting on the side of the garage who knows what they had. i was advised to take a free way going back to town as it was dangerous to take the route to home. this was a very terrible experience , on Saturday i called to cancel my contract as i cannot pay for services not rendered. i called again the following Monday and was told , they will pull the call to hear and will call me back, i waited the whole week and the next week i called only to be told that, the services i will get is when my car is ****** or literally being hijacked, which i don't think i would have survived, could have been ****ed. the service is very bad, now i was asked to pay a premium i was not notified about,