Unhappy student

I enquiries to study at Mancosa in mid February, and I received a call from a student advisor, we couldn't have a clear conversation due to the fact that I was having loadshedding which resulted in network problems. She promised to call me back that day when my power was back on, but she never did. Then I called the customer service department to get the assistance of the consultant who called me, she has never gotten back to me, I don't know if she is ignoring me or she never got my messages. So I'm not happy with the service I got from Mancosa's student advisory team. I would like to know what do I have to do for them to assist me with my registration process to study, because they don't return calls or emails.