Remind me again why I should choose UNISA as a study institution??

I have tried phoning UNISA with a query about changing my admission application to a different qualification, the phone just rings and rings, eventually a man answers, I start explaining my query, not even half way through my sentence I get told to "just hold on" and then get either transferred or put on hold. I then sat on hold or being transferred, it seemed never-ending so I gave up and put the phone down. How are potential students supposed to get advice/help if your consultants can't be bothered to assist? Your consultants need to learn telephone etiquette. And there should be more consultants to answer the phones.