Teller deposits money into the wrong account and does nothing about it !!! Money still hasn't been reversed

My dad went to Standard Bank Sand ridge square on the 7th August 2018 to deposit money into his Business Account. The teller then proceeded to take him to the ATM to do the deposit. The Teller Keaorata Sejake then made the deposit into the wrong account and told him she cannot reverse it and someone from the business sector will call him. The bank is now closed and no one has come back to him. The money has been deposited into someone else's account and no one is assisting him with he REVERSAL. It is appalling the way Standard Bank has handled this and we would like the full refund as the teller deposited the money into the wrong account.