Unauthorised debit order going off my account

I have been to a Capitec Branch numerous times in the past complaining about an MTN debit order that continuously goes off my account every single month. I do not have a contract with MTN and I have made it clear to your consultants that they must stop this debit order yet every single month I need to still go in and have it reversed and this is not only time consuming and annoying but also I get charged a fee when non of this is my fault. Just yesterday I went in and reversed an amount of R4000 made by MTN. This is absolutely ridiculous.

CAN CAPITEC PLEASE STOP MTN FROM DEBITING MY ACCOUNT. STOP IT!