Taking theft to another level

Today my account was debited by African bank for an amount that is not my instalment. Yes my account is 1 month in arrears and I did confirm with the consultant who called me that my debit order may continue as normal with effect from 25th January 2026, I want a copy of that telephone call as either African bank needs to spend more on training the staff or do the necessary education vetting if English is not that person's first language. Someone's head needs to roll for this as why is African bank debiting my account in random for an amount that is even more random. To make matters worse that funds in my account was to purchase meds for my daughter, if I do not get an answer I will be making a case of theft