Justifications for my money.

I'm beyond being livid with these rules that bank impose on us with ur own money that u've just transferred 2 days before,. I spoke to soon just last week I was jumping up and down abt the good service I got at FNB hence I've moved my account to them including a investments,this investment account is meant to start next month and I have a schedule debit order of 2000 for it however in error I transfered via cellphone banking 1500 which is my sons fees instead of my savings acc. I then woke up early on Saturday morning to try and rectify this and to my surprised I got told sorry once the money is in that account we cannot transfer it unless the is medical condition in that case we need a letter from the doctor or a funeral thus require death cerificate I understand that they have to be such things in place but this was done in error and as you can see the acc is new and the is schedule debit order for 2k why would i transfer funds into that account. So I really want answers because if I do not get my funds from FNB before the 4th which is when my sons fees are due they too can cancel and close my acc the is a lot of competitors who would love my revenue