Refusal to cancel DebiCheck mandate

I’ve genuinely had a great experience with Drive throughout my subscription, and I’ve always appreciated the service. Unfortunately, things became difficult when I needed to return the car due to affordability. I’ve repeatedly asked the finance department to cancel the DebiCheck mandate on my account, but despite my efforts, nothing has been done. Drive is still attempting to debit my account, and although the debits don’t go through because the amount exceeds my balance, my bank charges me R115 for every failed debit — which is becoming very costly. Drive is truly a good subscription company, but this experience has been disappointing. I believe the service would be even better if issues like this were handled more efficiently.