POOR Service from Cartrack

Our company has sold one of our vehicles and requested a tracking unit to be removed and fitted into one of our other vehicles. we submitted the form with the proof of payment to Cartrack on the 13 February. We then had to constantly phone a lot of people basically begging to find out when the unit will be removed eventually the unit was removed last week Friday. This morning we had to contract Cartrack again to find out when the unit will be installed in our other vehicle which they couldn't confirm. Eventually Middelburg Cartrack phoned to say they could only help us next week Tuesday at 10am. Seriously do we need to do their jobs for them and call after them???? Where is the customer service and communication. I understand it is a process which has to take place but not speaking to your customer makes them think you are ***********. I'm sorry if they cant even sort out a simple request like that, what would they do if one of the vehicles got ****** will we have to wait 12 days before they actually react to it???