Taking money without delivering services

On 31 June 2017 I took delivery of my new vehicle, upon arranging the insurance I was told that my new vehicle must have a tracking unit fitted and with my permission they will ask Cartrack to contact me. As I am an existing client with Cartrack I agreed and received a call from them shortly after to make the arrangements. We agreed to a de-installation and a new installation into my new vehicle at a cost of R 850.00 for this service in addition to the monthly subscription fees. Cartrack has proceeded with the debit order in this regard as well as now 2 months subscription fees. I contacted them telephonically last month and requested that this matter be escalated and resolved as soon as possible. I have not heard anything from them as yet but they have no problem taking my monies. My recommendation is to stay FAR away from them unless you would like to waste your time and money too!