Money paid into wrong acc by cashier

<p> Std Bank staff r useless n they dont verify according to fica n il take dem to Ombudsmen. I deposited after my old mother inlaw gave me acc.but when i cal she didn't receive money. So where did the money go BECAUSE acc had her names even if its wrong could the cassier not see that the names on acc she deposited n one i gave were not matching </p>