Machine error somehow turned into my problem

I'm at the Greenstone branch in FNB and I just made a cash deposit. The transaction was unsuccessful and they the machine did not give me my money back I had 2 call about 3 departments as the customer care was unavailable. When I finally got through to someone they tell me I need to come in on Monday to the branch to enquire about MY money and why THEIR mmachine had an error. Machines are bound to have errors at some point but isn't their responsibility to have a dedicated 24 service team to help their clients with such this was an emergency by the way, I'm really glad I'm not banking with FNB and appriciate my bank even more.