DEBT COLLETORS

Can I pls get clarity here,<br> <br> I registered with Unisa in 2000 doing 2 modules due to the financials challenges i just went back home bcos i ddnt got job i wrote 1 exam and ddnt get my results because of money problems so nw they demand their money that i dnt have they even hand me over to the collectors and I dnt have money,i dnt have qualification, i have kids to support thers lot in my plate at least if they can refund the money paid me before bcos i dnt hav qualification and they didnt played their role to assist me since from 2010 they send me sms in 2016 is fair.or they can send me a clause where it says if you leave school due to poorness or lack of money you still need to pay even you dnt have qualification.