BAD attitude from the customer service Cartrack is a ****

I phoned cartrack during november 2023 requesting that they must please take out my device from my old car and place it into the new car. After numerous of calls I finally received an appointment with a technician during December 2023. (I advised them the old car was already sold and due to their negligence not answering my calls or emails they must now go and remove the device in PTA and re-install in nelspruit). So when the appointment day came, the technician never pitched for the appointment no one phoned me to reschedule or make excuse for not coming. When my debit order for December 2023 went off I decided to dispute it as I am not receiving any service from them as per the Consumer Protection Act. During January 2024 I received harrassment calls from 14 agents. Wherein I explained I will not pay the arrears as they did not provide me with service. They then booked a technitian to come and install the device on 20 January 2024. Now they start harassing me again. I advised them I will not pay for December 2023 up to 20 January 2024 as they have not provided me with service and if they can prove to me that they provided me with service for this period I am more than happy to pay them. The agent then threatened me and said that no matter what the Consumer Protection Act says my account was active therefore I will pay or my name will bear the consequences. If Cartrack does not write off the amounts which they debit my account for even though they do not provide service I will take them to the Ombudsman and I will cancel my agreement with them which I now have for 4 years already. Your agents are rude and do not know the Law.