I AM A PESIONER I NEED MY MONEY PLEASE HELP!!!

In 2012 I sold my house and invested the proceeds from sale with Stanlib in Flexible Income Fund A. In November 2014 I bought another property and needed all the funds invested with Stanlib. A portion of the funds were withheld by Stanlib and on enquiry I was advised that this portion was invested with African Bank and not available as amounts invested with African Bank had been frozen.I invested my money with Stanlib and NOT African Bank and I need the money now. PLEASE HELP I AM A PENSIONER