"Just put 25 in and eat the 5 bucks. Not receipt required!"
CBA 8.C.5.a
Reporting Procedures
Any time an expense is charged to a Company issued Travel Card, a deviation ticket is issued or a deviation expense is incurred, an expense form shall be submitted, with appropriate original receipts.
If I understood the original question, you used the company card and now do not have a receipt. If this is so, contact your ACP and explain the situation. They can authorize your report to be processed without the receipt.