Tracking device not being removed

I called on the 12 of February to advise cartrack that I’ve sold my car and to remove the tracking device from the vehicle and that I’d contact them once I’ve purchased a new vehicle to install the device.I provided them with the contact details of the person they had to call from Webuycars and provided them with the address which was at Germiston.Ive called multiple times to ask why the tracking device has not been removed yet and they said they don’t have enough technicians.The car has been moved from Germiston to Randburg the device is still not removed however I paid for the device to be removed,I called today and I’ve been from pillar to post and I’m being asked to provide with the Randburg address of which it’s something I won’t do.I called on time and provided with all the necessary information however Cartrack has not done what their supposed to do now I’m expected to confirm addresses,I don’t know anyone from Randburg and I won’t confirm any details.I don’t know how many times I’ve called with regards to this matter and I’ve still not gotten any assistance