Cartrack and their horrible and unprofessional services

For the past year that I had car track I have had endless problems with them and their payment methods even though I have been debited every month they sent me an outstanding bill of about R900 and they shut me out from having access from the app every month without fail they debit my account and now they giving me problems like this I'm just so fed up with this company and it seems like these people are not even doing their jobs correctly