Worst customer service I've ever experienced!!

I have been trying to register for long now. I paid the full R5000 registration fee with the reference as provided, but I've received little to no correspondence about what's happening. They said the finance department rejected my proof of payment and I email every day, multiple times a day, phone and get put on hold for half an hour - nothing gets done. And the person 'helping' me has an extreme attitude and ignores my emails. They only respond once or twice a week with useless emails, not getting to the bottom of the story. Nothing has been done about my missing R5000 and I was told if I don't register early, I will not be guaranteed a spot - so now what? I just don't get a registration spot because their customer service is absolutely **********? I do not recommend Mancosa - rather go through any other institution, because once they've drained you of your registration fees, you won't get any information or help out of them again.