Bad service

I joined cartrack May 2018 and i was involved in an accident with my car april 2021 which the insurance wrote off my car june 2021 and settled the outstanding balance at the bank . I cancelled cartrack July 2021 . Last month 2022 March the 20th the debited my account with R900 and i reversed it. They sold their Data to Nible group and associates which they blacklisted my name . I went for an interview and i was successful now they could not give me an offer due to cartrack and Nible . I called cartrack to find out why am i owing them they could not answer me they referred me to Nible . I called Nible group they have nothing on my name on their records and i have been calling them for two weeks now . I am very disappointed and angry with cartrack and this is the job i have been praying for but now i cannot get it due to cartrack.