It defies belief that large corporations with armies of HR staff and sophisticated computer systems can screw up their payrolls. Complicated workplace agreements, complex and frequently changing staff rosters and computer errors are more likely to be at fault than any deliberate attempt to shortchange staff. However, it is baffling how these errors can run for years with underpayments to staff totalling many millions of dollars. Given the spotlight on inquiries into the underpayment of employees