After several calls, emails, and threats from Cartrack, they finally issued a cancellation letter

After several calls, emails, and threats from Cartrack, they finally issued a cancellation letter. However, they continue to call and harass me. I have forwarded the letter to members of their Accounts Department, yet I still receive calls and my account is still debited, which is extremely annoying. > > I would like to advise my fellow South Africans not to use Cartrack – they are ******.