******* debit order - Service never took place!!!

About early September I made a call to Cartrack to deactivate a tracking device on my car and reinstall it into another car I recently purchased. The accounts department informed me on the costs of the removal of the tracking unit and reactivation which is R870, I said should this process take place can I make payment arrangements because I did not have the R870,00 at the time. However this was never agreed upon as I made a tentative appointment with the technical department on a date a time that both cars would be made available to deactivate and active the unit into another car. I later made another call to the scheduling department to move the appointment to further date as the other car did not arrive in Johannesburg yet. After a two days I made another call to the same department to cancel the appointment fully and I will call back to request another appointment to restart the deactivation and reinstallation of the unit. However, I still received several calls from Cartrack consultants/call center agents on when will the appointment hold, and I continued to explain that I will inform them when both cars are are ready and available at one location for this appointment/process to take place. To my surprise I was debited twice on the last day of September 2020 - R199,00 for my monthly payment on the existing tracking unit and another of R290,00 which was a breakdown of the quoted R870,00 over three months on the deactivate and reinstallation of the unit. This service NEVER took place nor did I sign any invoice or job card, but Cartrack still debited by account of R290 for what I don't know. This is a huge convenience as we are living in hard times and it is a huge frustration being charged for a service that NEVER TOOK PLACE AT ALL.