We have to pay for parking yearly at our work/college. I started in 2010 and signed for a parking pass for payroll deductions and assumed deductions were occurring as I get direct deposits and do not check my stub. December 2015 college did an audit finally and found "a few" employees who had slipped through their "bad manual process" as they said. They stated they would take on 90% of the burden of paying back what was owed (for myself over 3000 dollars) but as we had a responsibility we had to pay the 10% cost ($316) for me back within the year. My argument is that this mistake was their mistake. Do I legally have to pay this back?