Poor service at FNB Southernwood East london

I deposited money into my account at FNB southernwood branch on Monday. The money was not deposited as the ATM went out of service. I did not get my money back. The branch was already closed. The security guard told me to come back the following day. I did go back and filled in some paperwork. The consultant told me that the person who is doing ATM disputes has already knocked off but I will get my money on Thursday. Thursday came and I still haven't received my money. I visited the branch once again on Thursday. Another consultant told me that it takes 48hrs for the bank to return back the money. What I don't understand is that why wasn't I made aware of that in the first place. I mean it's my money I am not asking for a loan from them. I wasn't treated with courtesy at all and I am considering Changing the bank.