Worst Customer Service!

I wish there was 0 rating because they have the worst customer service!!! I was paying R576.78 for 2 vehicles. They called me to offer me a contract renewal which would lower my monthly repayment to R438.00 for both vehicle. I agreed but only to find that it would be the worst decision. Not long after I got a notification for a pro rata of R238.69 which I was not aware of. I called them several times and spoke to numerous agents but I was told I have to pay that fee. I even asked for a recording which I am still waiting for. I ended paying that "pro rata" fee. But it wasn't a pro rata fee, it was a cancellation for one of the contracts...which I was not aware. They cancelled 1 vehicle and the unit was not active without my knowledge. I called and spoke to other agents but nobody seems to really care @ Cartrack. I urge you not to use Cartrack. Can anyone recommend another car tracking service please?