Beware of Ned Bank ATMs

Worst service from Ned Bank ATMs department. Tried withdrawing 5k cash from the atm but only received R1900 because the atm was defective the money jammed. Called to resolve the issue 2weeks ago was asked to contact my bank which is Capetic. I was told that the process takes 7days but when I did a follow up I now have to wait 30days to get a refund. How inconvenient is this for a faulty atm.