Originally Posted by
chetdogleash
We also use Concur. I have done exactly what you would like to do, but I was within the 24-hour window and they just reissued the ticket (outside of Concur).
Reissuing the ticket could mean a refund to the original form of payment, namely the employer's DL account or employer's credit card. OP doesn't want to then pay for an entire new ticket with his/her own credit card.