Misleading information & lack of service delivery

I have been paying back the loan i took when i was doing my diploma in 2008, from 2013 when i was employed as a graduate by SARS i started paying the loan back. The problem is i dont get feedback from them on how much i owe and how much i have paid, they always say they have a problem with their systems. The amount I am owing doesnt seem to decrease since they are charging me interest every month. On the 2014-07-15 i spoke to Lulama Damane who advised me that they dont have my qualification thats why they are still charging me interest, and said i must email it to her she will sort it out, till today she never came back to me. Then i called the call centre again which they advised me the same thing about my qualification and interest but told me i was suppose to sent the qualification to accounts. I didn that but no feedback. Something must be done about their billing system because i will stop paying if they don't improve their services and that will cost other students who still need the financial assistance like i did back then.<br> <br> Regards<br> L M