Unresolved debit order problems!

Car track finance department or customer service is ***********. I called and submitted new debit order information after I was told they don’t debit from Tymebank. For the past 5 months I’ve been harassed through calls and emails because they’re saying my account is not settled ! How ???? When every single month I ensure there’s sufficient funds to pay all my debit orders ! I asked them to rectify it all consultants said it’s fixed only to experience the same thing every month. Is this a **** to charge me an additional 10 fee for a false bounced debit order ? I’m tired of this ! Worst tracking company ever to exist !