Reversal

I logged a call for a reversal of funds paid into wrong account on the 3rd of October 2023. I went to the branch in Midrand and was told that they will investigate. Its a week later and no feedback or resolution, being told the same thing over and over, they are investigating. Branch Manager also kept telling me he would call me, but never did, I had to keep calling. To date I have no resolution brought forward, even though I made it clear from the start how urgent the matter is. Who can I speak to???