Trackerr inefficiency

I was iinvolved in an accident. On climung I was oblged to pay R 10,000.00 excess because my tracker had ceased to be functional two montths previously. Despite claims by Tracker that I was advised by both telephone and email, careful examination of both emails and phone recoords, no suxh advice was received NOR CAN TRACKER substaantiate these claims. They deny ANY responsibility. As my insurance insist that Tracker be installed I have no option to use another tracking device. Tracker have undoubtedly proved to be almost useless but the debit orders on a NON FUNCTIONING DEVICE continue.