For Auto-Delivery orders, the system first checks your available commission balance for payment.
If your commission balance is enough to cover the full order total, including tax and shipping, the order will automatically be paid from that balance.
If your commission balance is not sufficient to cover the entire order total, the system will instead use the credit card on file for payment.
If you see a debit in your commission history that matches the amount of your Auto-Delivery order, that debit reflects the payment used for that order.