Ridiculous service

Absolutely ridiculous service from Standard Bank. My credit loan was approved but still every month you are trying to deduct from my account. This keeps bouncing and I keep paying fees for this. Two month's ago someone from Standard Bank requested the correct department to refund the "failed debit" fees, to this day nothing has happened. I have followed up again and again and again, even added a few departments and email addresses to my email. Still no one gets back to me. No one fixes this