tracker cancelation and response

From the beginning of October, I'm trying to cancel my subscription on a vehicle that has been sold. No response whatsoever from trackers side. Also did my father give permission for me to cancel everything on this behave to a consultant. She advises me to hold the line so she can sort the paperwork and email me the details and then drop the line in my ear. 3 weeks later still no response! I will never recommend tracker to anyone