Complain about Standard Bank

on the 14 December i made a cash deposit to ***9, instead of ***, and the money went a Standard Bank account to a a name Van Wyk, which i dont know, my intention was to deposit to Dlokweni. i then went to query the deposit on the 17 December and i was told by Consultant by the name of Lawrence assured me that the matter will be sorted out on the 24th December, and on the 24th December i got an SMS that the matter has been sorted out, but i did not get the money back. i then went back to the Branch and was assisted by Kagiso, who also promised me that the matter will be sorted out. even today on the 18 January nothing has been done, i haven't received my deposit back. its over a month now since this matter has been delaying.