I read about another case in australia where an ATM was issuing $50 notes in place of $20 notes so once word got out a ton of people turned up to withdraw $80 - it came out as 4 x $50s = $200 ... but they were also asked to pay it back to the bank...
http://www.couriermail.com.au/news/commonwealth-bank-atm-dis...
I really don't know what they expected to get from this to be honest: I mean, I'm pretty sure when you open the account you recognise somewhere, somehow, that if you overdraw your account it's your responsibility to pay it back...
Also according to a ISO standard on magnetic cards with used by banks - track 4 as will have stored the last amount taken out. So even if you have say 1000 units of money in your account and take it all out and then try to take it out again, the cashpoint (even in batch mode) will know. Now if you cloned your own card prior to the transaction and then used that clone, you may or may not be able to withdraw that money again - but would also have to use a different ATM is the one you just used will have a record itself.
Bottom line you can defraud banks out of there money, but it involves breaking the law like any other form of imoral gains. Only true way to rob a bank is to be another bank somebody once said, may very well be the thruest and with that sadly the only way legaly.