Money missing

More than 17,000 rand has been with drawn from my account over a period of 2 years in 99, 89 and 88 rand increments. I am still waiting to hear when I can get this money transferred back to me. My banker apologized and reversed the amounts that were phished off in the last month. I have yet to hear when I will actually get a report on what has happened to the rest of my money and when some sort of solution will be reached. I've banked with FNB for over 20 years, this is very dissapointing and I'm considering moving to another bank