Refund problems

I registered to study with Mancosa. However couldn’t continue due to personal reasons. I de registered my studies on the 19th business day after confirmation of registration. Their rule book says 20business days. I took a picture of the date I processed the de registration. It was the 21st of February. I keep calling them and they keep saying it is with the accounts department. You only have one person in accounts department? I am waiting two weeks now for someone to tell me if my refund is processed and when I will receive. I went on my mancosa page and I see the date refund processed has now changed to the 23rd of February. This is completely wrong and really suspicious. I have proof that I processed on the 21st. When will mancosa process my refund? Do I need to get further legal advice and publish my proof? We work so hard and need our money. It is not fair to wait for our money. I

Student number 181725