Non payment of deposit

I hereby wish to Express my deep disappointment in Pearson Institute in Midrand. My daughter was a student there from 2017 to 2019. They pester you for payments month after month even when payments are not due yet. I want to warn all sponsors of students or potential students. If the student is in their last year and was a resident at their premises, do yourself a favour and deduct the refundable deposit which is due to you when doing your final payment. Apparently their turn around time for refunding monies are 6 to 8 weeks. They have all the documentation. They have the final statement reflecting the negative balance yet they refuse to pay monies which is due to us. They also have the tendency to ignore emails from junior consultants right up to management. Also don't get caught with the early bird payments. They debit and then credit this amount again not to reflect on your statement and if you are non the wiser, you will lose this amount. They tried it with me and it was a case of backwards and forward emailing to get this matter resolved. Why do they demand that fees has to settled in advance and harass people month after month for payments yet when they have refund deposits, it becomes an unnecessary dragging of feet.