NETSTAR ****************!!

I traded in my car in May 2019 and contacted Netstar to assist with re-installation while the new vehicle was still at the garage, 3 days later no response after promising to assist with the re-installation process. Since that period till about July all my efforts in calling and email have been in vain, instaed they still kept on debiting for a vehicle that was sold to the garage and was driving an untracked vehicle. A lady by Neo Lesupi eeventually responsed on 11th of July telling me to go to the previous garage where I sold my previous car and ask if they still have the car so that Netstar can go remove and reinstall... After 2months??? how can we expect a garage that sells cars to "keep" a acar so that they can so their work... nonethe less the car was already sold at the time. Then I was told about terms and conditions regarding new installations and cancellations that I was not told before. I requested a recording of those and to date Neo is still waiting to retrieve them. I am still beng billed today besides my cancellation notice. There is still no voice recording to prove their policy etc and I am getting calls Legal Collections DEpartments based on their own inefficiencies. I still refuse to pay for R1400 + while my car was not tracked from the period of May to date... which car am I paying for, and if an unfortunate event occurred, which car whee they going to retrieve???