NO ONE at UJ answers their extenstions!!!

I used to attend the university of Johannesburg but had to discontinue my studies in 2013 after my father died. I left with money owing to the university and wanted to get hold of student finances in order to settle my debt. I called the call centre and selected the option to be directed to student finance. The phone rang for about 5 minutes. I tried 3 more times but then decided to speak to a consultant who gave me 5 extensions to try as he said he could not help me further than that. I tried all FIVE extensions and not ONE of them was answered! This, I feel, is totally unprofessional and inconsiderate. I sacrificed my time and money to get hold of them and I am very frustrated and displeased because of this event.