Worst service ever getting charged for something that is not sorted out.

Last week Wednesday I installed one of your tracker units in my bakkie. I am not very satisfied with the service I received because at first I was not given the options what packages there are because of the insurance department told them witch unit to install. When they finished with the installation I wanted to log into the app and couldn't find my bakkie, I phoned in and they told me it is not the right unit and if i want to upgrade I need to pay 300 and something in for the upgrade. I am not even a client yet and I get treated like that and every time I phone back they say they will come back to me and since now I have not received any phone call regarding this. Tomorrow is a week and there is already a debit order that I cancelled because I am not satisfied with the product or service.