The concur partner travel agent charged agent fees to the wrong credit card which subsequently showed up in Concur as an expense.  The agent has refunded the expense to that credit card, but it now shows up as a credit in Concur expense.  This happened twice on the same trip, so there are 2 debits and 2 credits floating in my open expense field.

These can't be directly deleted, so what can I do with them to make these mistakes go away?