Most unprofessional private school and unfair treatment

So I app**** for my son to join junior college he was accepted and paid deposit and stationary advances back in August already only to get bothered every month after that with invoices emailed to me every month up until now about January school fees which must be paid but we were told to pay as soon as he starts when we attended his orientation I will attach all the necessary screenshots and publish my story everywhere so everyone can see that this private institution doesn't actually care about the kids which is sad because they are our future all this institution cares about is money.... I was threatened insulated and ******