unfair treatment

<p>12/09/2016 i subscribed with tracker for Range rover, the very same month the vihicle was returned to the garage due to some factory faults. i informed tracker to cancel the intalled device and intall it into the new vihicle( Audi A4). They installed and because there was no debit ran for the old vihicle they did not charge me cancellation fee. every month from they charge me double even though i informed them countless time that i dont own range rover anymore.</p> <p>Last month i received a call from their consultant telling me to pay cancellation fee, what subrises me is cancellation fee after 6 month of cancellation. due to that my record is very bad with unpaid debit. please fix my account and clear my name. </p>