Complain for Tracker from Tracker

I'd like to put a complain from the company Tracker from Tracker .2019 April 27 my car was involved in the car accident and the insurance write it off.I phone the tracker company told them to cancelled my tracker because the car is nomore.Refence ***,the car registration was FB 87 WW GP.Its not far to continue paying for something that is nomore what m i paying for.Please help hello Peter