- If a customer is using cash discount , sometimes when re-opening a check that was closed to a credit card, the cash balance will display as negative.
- The balance on the check is still 100% correct, even if cash is displaying negative

The reason for the negative balance is the discrepancy between an items price when paying with credit card as opposed to cash
- Be sure when re-closing the check to close it to credit card. Doing this will keep the balance in check and not create any additional difficulties.