Angry,sad and disappointed

I have been using their tracker on a old car so I got a new car on the 15th of November 2019 I called them informing them of the new car I am getting and ask them to come install on the new car,the lady I spoke told me the scheduling department will contact me and I will be charged R870 and I said no problem you can debit and after a week I didn't receive any call and I called again on the 27th explaining my situation and I was moved from one department to another and was holding for almost an hour but I couldn't get assistance and I called again the following day still the same issue nobody wants to assist me . I am using my resources to call them and ontop of that they debited my monthly payment but I don't have a tracker with them as they already deactivated the other car and I have been waiting even now to get assistance everytime I call I get transferred to different departments and now I have a car with no tracker yet I am not getting anyhelp and I hot a message of summons saying I am owing them 870 how when the tracker was not installed...you will hold for hours and not get assistance but they know how to debit your account.