CarTrack - Pathetic service

I have never received such pathetic service from a service provider in my life. I sold my vehicle and asked CarTrack to remove the tracking device from my old vehicle and into my new one. They gave me a form to fill out which I did immediately as my brokers informed me that they cannot cover my car for theft without a tracking unit installed. 2 weeks had gone by since I filled out that form and nothing was done. Everytime I phoned CarTrack, they said they're going to get back to me. Eventually, after four weeks of filling out the form, someone from CarTrack phoned me to say that new owner of my previous vehicle is not allowing them to remove the tracker from her vehicle and that it would cost me another R600 to install a new tracking unit in my vehicle. I agreed to pay the R600 as I needed the insurance done on my vehicle ASAP. It has been 2 weeks now and still no word from any CarTrack representative. I am a business client of CarTrack as I also have my fleet fitted with their tracking units. I dread to think what a person who has only vehicle contracted to them will have to go through dealing with their pathetic customer service.