Mancosa doesn't care about their students and will not respond

I paid my fees in full last year around this time and then later in November last year I received a call from their finance department saying that they are still waiting for my payment, I then sent them the proof of payment and heard nothing from them since, early this year people were receiving their results and I didn't, so I called them and they said that I should send an email to their finance department of which I did and there was no response I then went to their App and was told that I should contact the finance department department again, this went on and on until It was time for pre-registration again in April and only after having spoken to a lady who wanted to ask if I'll be registering again for the second semester and then I explained my situation and only then my results were released and by that time I had given up and even missed KCQs, I then sent an appeal which was approved but only on a Saturday afternoon when the KCQs were closing the next day, bare in mind that I had never received any correspondence from Mancosa on a Saturday.