UNISA LACK OF RESPONSE TO HELP STUDENTS

I HAVE BEEN TRYING TO REGISTER ONLINE FOR THE FIRST SEMESTER BUT I KEEP GETTING AN ERROR THAT SAYS MAJOR ERROR LIST QUERY CONTACT HELPDESK. I HAVE CALLED THEM NO ANSWER!!! SEND THEM NUMEROUS EMAILS AND SMS AND NO ONE BOTHERS TO HELP. I HAVE MISSED THE FIRST SEMESTER AND TRYING TO REGISTER FOR THE SECOND SEMESTER AND I STILL ERROR ... STUDY IN DISTRESS PLEASE HELP!!!!