not given a satisfactory treatment

in January 2018 my father had mistakenly deposited money into someone's account and we called capitec to find out if its possible that they can reverse the money from that person's account since well they have everyone's information on their systems and they said they will contact that person and revert back to my father. since that day they never got back to us to tell us of what are the procedures to get back the money, its April now still awaiting their call.