Cartrack can't move devices from 1 to another vehicle

I contacted them on Friday 14 August 2020 to get the tracking system installed in a new vehicle. I told them the original vehicle is sold and since I can not cancel the contract it need to be installed into the other vehicle. They said there is an installation fee for R800 and something. They said they will phone me back. Today 21 August 2020 they phoned me to say that they need access to the original vehicle to remove the system from the vehicle. Again I explained that I do not have access to the vehicle anymore. They then said "we will get back to you". It took them a week to get back to me, and still I do not have a date or anything on when the system will be installed into the vehicle. When i phoned them I told them I am on leave and that installation can be done any day this week and the week is over and done with. Maybe its lockdown bull**** that the service is **** but this kind of customer service is pathetic