When processing a payment for your renter, you have the ability to alter the amount charged for that transaction. Meaning you can change what should be a $1,000 payment, to a $500 payment. Which then enables you to make a 2nd $500 payment on a different card!
Navigate to the reservation
Click MAKE PAYMENT
Double click the dollar amount displayed
Enter the amount desired.
Follow the steps to finalize payment
Repeat with a different card!