Can we auto reject negative expense report only for corporate card transaction?

Summary:

For certain markets in our corporate card program, the bank couldn't process the entire payment if the remittance file contained single negative payment per card. We would like to know the available options.

1. Where the negative payment can be excluded from payment processing by Employee for that PPR run?
2. Whether can we put a rule that auto-rejects the expense report based only on expense amount of corp card. For eg: the expense report contains both OOP and corp card transaction. There is negative expense amount for corp card transactions and positive amount on OOP expenses and summation of this leaves the whole expense report as positive. But we wanted to reject the expense report if the corp card transactions sums to negative line charges.