Bad and unprofessional service at nedbank sasolburg branch

I went to nedbank ATM at sasolburg branch to do cardless withdrawal and their ATM went offline when it supposed to disperse money and I use the next ATM and it shows the voucher was already used. I went inside the branch to query and was sent from pillar to post, you could just see those people were clueless. One minute I thought I was at home affairs department or government clinic as we were made to sit on the chairs and move along the queue and the staff members were talking amongst themselves that they are going on lunch since the system is offline. I was there from 11:22 and left at 13:10 without getting the money and was told they have logged query the money will be refunded after 3 days,mind you I didn't have taxi fare to return home and my child have a school trip on Wednesday and that money was for her foods for the trip. What was worst about the whole thing is that while I was helped by a guy teller he was having a conversation with his colleague and the assistant manager joined them talking amongst themselves as if I was invisible for almost 15minutes . That lady manager took my cellphone number and promised to call me back before end of day but never did and you could have seen that she was just wanted me to leave. Why must I suffer for technical problems cause by the bank offline why money was not reverse automatically