Tacker cancelled without my knowledge

I had a tracker fitted via Dial direct 0n the 03/02/2012 , however my car was ****** and when called Tracker they said my policy was cancelled . No one called me to notify me my tracker is expiring or it needs renewing , they just disconnected . I called your customer service which was not helpful to me in trying to recover my vehicle at all . They where just saying my tracker is cancelled , I even opted to back pay my tracker for the outstanding amount ,explaining that I had no knowledge it was cancelled . Your service consultant did not even try , they just said cant help . To my knowledge if the unit is still in vehicle im sure a signal can be detected . My other issue why your service consultant never call me to get my tracker serviced or renewed ? This puts a doubt in me having Tracker again , service does not make me happy and will report to my family friends that Tracker does not work and does not offer good service .