FNB ATM deposit malfunction, no cash returned

Last week Monday 10/09/2018, I had the misfortune of making an ATM deposit in Diepsloot Mall. The deposit did not succeed. The ATM gave me out a slip but the money was stuck inside. Because It was after hours, I went to the branch to log in a query, which I was informed would be resolved by Friday last week (14/09/2018). I went back to the branch today, 18/09/2018 to find out why I have not received any feedback. I was told that they are waiting for head office to confirm if the ATM was in excess of deposits logged. Mind you this was a deposit of registration fees for a grade 2 child and I think I am not reasonable in expecting speedier resolution of this because at the end of the day FNB will not be lenient on me if i delay in paying them by 7 days. The same should apply to us little people who are highly inconvenienced by their systems malfunctioning. I am not satisfied with the line I was given by their employees today.