CARTRACK - REFUND TO ME STILL NOT PROCESSED

I was purchasing a new car with my previous car having a Cartrack unit as instructed by my insurance company. I had called Cartrack to uninstall my unit & cancel my account with the penalty being that I pay the uninstallation fee of R1700 rental fee divided by the remaining months still left on my rental contract which I worked out to be around R1000. After getting a call from my credit controller named Patrick, he had informed me that since Cartrack value my account they will offer me a special rate of R570 to uninstall from my old car and reinstall in my new car which I had agreed. After it was done I noted a debit of R850 which I had called Patrick about. He had said it was done in error as the person who processed the debit order did not see his note to process at the R570 & he will get the refund processed but it will take around 14 days. This was around the 5th January. To date it has not been done. I have made countless call. Patrick is no longer my credit controller with my new credit controller telling me everytime I phone that it will be done the next day. It is a simple thing to do & if it can not be done than I want my account closed at no extra cost to me.