As a former federal contracting officer if the employee can not produce a signed and approved 514 for the purchase on "their card" then they are responsible for the payment.
You can't post date approvals of purchase orders I am not going to jail to cover for some pin head. I can't believe this went on for more than 30 days when the first bills came due.
I worded that poorly, my intention was to fire the employee and tighten the card use by the supervisors.