The credit was received after the Travel Card was reconciled. 
1. Add credit to an expense report in AggieExpense.
2. Change Expense Type to match the original charge.
    Include a comment explaining what the credit is for and include any related report keys.
3. Allocate the credit to the chart/account that was used for the original charge. 
4. Submit report.

If a traveler has already paid a personal expense back to the University and a refund is issued, then the credit will go back to the traveler.
1. Add credit to an expense report in AggieExpense.
2. Change Expense Type to "Personal or non reimbursable".  
    Include a comment explaining what the credit is for and include any related report keys.  
3. Submit the report.  
4. The refund will show in the traveler's MyBill account. 
5. A check will be issued to the traveler if there are no outstanding personal expenses.