NEDBANK CASH CLAIM NIGHTMARE

On the 4th of January 2018, I went to Nedbank Bank The Glen Mall and I tried to deposit cash. I did the transaction the machine allowed me to put in the money R5,800 and the ATM closed later only gave me a screen which said the transaction cannot be processed and later another screen which said we cannot give you back the money it kept my R5,800. I went inside the branch reported this the lady Uvian from the branch competed a form and she said she sent to the auditors. It has been a nightmare trying to get my money back into my account. I was told by teller number Uvian at the Enquiries that will get my money back into my account between 7 to 10 working days. I have tried to get hold of the branch the phones are always engaged . Tried to contact call centre the issue was escalated to a Supervisor but still no assistance and was later escalated to a manager and still no assistance. I do not know what else to do. My children are going to school I saved this money for their expenses I need my money R5, 800 is a lot of money. You cannot tell me the machines were not audited from the 4th January to date. I need my money back