Telkom costs me unnecessarily

Good day Telkom is costing me unnecessarily. I informed them about 5 times of my change of banking details. They continuously debit the wrong account which frozen.

They cut their services to me due to non-payment meanwhile they are the ones who are deliberately debiting the incorrect account .

Their debit keeps bouncing back at R8,50 per bounce twice a month for 4 months.

Is this poor service/incompetence/arrogance/negligence or what? I don't know.

I'm writing to Hellopeter because even if i contact them again, they will confirm that my banking has been changed and next month still debit the incorrect account.

Hellopeter please assist since i can't use their services but they keep debiting the frozen account which builds up charges based on the bounce backs.

Warm regards Mamushi