STANDARD BANK DECEASED DEPARTMENT

I HAVE BEEN WRITING TO STANDARD BANK SINCE 2014, TILL TO DATE NO RESPONSE, THE ONLY THING I'VE BEEN GETTING FROM THEM IS ACKNOWLEDGEMENT OF MY COMPLAIN. I NEED TO KNOW WHAT HAPPEN TO MY LATE FATHER INVESTMENTS. HE OPENED A 5 YEAR INVESTMENT IN 2002 JULY WHICH WAS SUPPOSED TO MATURE IN 2007. COMMUNICATION WAS NEVER SENT OUT, WHICH MEAN SOMEONE WAS HELPING HIM/HERSELF WITH MY FATHER'S MONEY, I BELIEVE THAT'S THE REASON EVERY TIME THEY TELL ME, "DECEASED DEPARTMENT IS HANDLING MY QUERY."