Shocking Query Resolution and Financial management

I am forced to select at least 1 star but if it was up to me, I would select -5 stars. Our experience with Stadio has been a nightmare from the beginning. At registration, nobody could answer the questions regarding my son studying off-s****. Phone calls were futile so I went to the campus and was directed around the houses until I was given an email address of someone helpful who made promises re online practicals which then ended up not being true, which meant my son has had to fly back to SA for 6 weeks to do in person practicals (not budgeted for). His experience of query details of when and how online exams will be done was shocking, with him being shared a link to the exam and a timeslot literally 30 minutes before it was due to commence, meaning he had to re-arrange his schedule. NOTE: For every time he has queried items like this, he has to pay a R285 admin fee for logging a ticket!!! The last straw now is him not being able to obtain his results or register for the 2nd semester as apparently he owes money. However, the statement received shows I have paid all the debit orders on time and as run (even when they messed up and had to double debit one month). I have emailed them and received a ticket this morning but no response. I have now tried to call the number and was put on hold for 20 minutes (in between being redirected to registrations) due to "extremely high call volumes". In the meantime, my son cannot get his semester 1 results due to outstanding amount or register for Semester 2. It is very frustrating and needs to be fixed for the amount of fees paid (over R4000 a month).