Bad service after trading in my vehicle

I have been with cartrack since 2018, I traded in my car last year in June, tried to get cartrack to move the tracking device to my new vehicle, I was told I need to pay R850 which I didn't have at the time, the consultant with whom I spoke to informed me I could make arrangements with regards to paying that, July comes with nothing materializing in terms of getting the device to the new vehicle.

I put a stop order on the monthly payments as I had no tracker in my new car, I received a call from accounts and I informed the consultant as to why I was not paying the account, I even emailed one of the consultants as to where the previous vehicle was situated and who they could contact to get the tracker, again that never turned into anything, I only kept getting calls from accounts to pay my account, which I have been telling them I have this issue of not having a tracker in my car which I told them earlier on about before deciding to stop the payments.

At some point I was told I cannot get the tracker from the old vehicle to the new one until I settle my account, I feel that is unfair as I informed several consultants of my trade in and tried my best to get the tracker to the new vehicle, I should not have to pay for months that I was not using a device which I initiated to be moved to a new vehicle.