Poor service

Car track customer service as deteriorated and has left a bitter taste in my mouth. Firstly in June I had to upgrade my tracker since it was draining power from my car. They took 2hours to remove one tracker and supposes to install a new tracker but to my disgust they remove the tracker and did install the new one until they phone me approximately two days after to inform me they have not installed the tracker. Plus tracker has debited my account twice within 10days apart. Currently I needed my tracker removed from one car to the next. You can never get through to the Durban branch. I had to fill R100's of Rands of airtime. They are charging me R800 which I have asked for a discount to R600. And it would cost my another R600 if my car get sold from the dealership. We have insurance to limit the financial lost of the car. I just have tracker since my wife drives my car time to time and if she has to get hijacked with the car. But I seriously thinking about canceling my car track because the customer service is grievencely poor. I am so tired of calling them. Then the call get cut off but they do not return my call. I have deal with many companies and there call centers and they call you back if the call get cut., ?????I just so frustrating. But when they want there money they so quick to pick up the phone. And the R600 I need to no one mentioned it would be a up front payment but cartrack made it seem like I defaulted on a payment. I can't handel inefficiency.