Unhappy with the service and sold unwanted products

In November 2019 I asked my mom to buy me a 2015 Renault Clio GT Line from VW Midrand, we were helped by Renier and the process went smoothly and car was collected by the 26th of November. The first installment went off in January and to our surprise there is another installment of R110 from Tracker, we tried to make contact with them and they advised us that it's for tracker for the car. We are astonished because this was never told to us, and the people at Tracker advised us that it was by law and the car was not going to be allowed to leave without it. Firstly we were never told about it and we do not want it and they still refuse to stop the deductions and how can one install a tracking device in my car without my knowledge let alone concern. I think this is not good, both from vw and from Tracker themselves. All I need now is for VW to help with the cancelation of this because we don't have anything and we don't want anything to do with it. We never signed for it, and please sort it out soonest because this is something that we are taking to the FAIS ombuds if not resolved. My mother contact is *** and me on ***. To be honest I am not happy at all