First, click "Pay Now"
In a new window the "Enter Payment Information" page will be displayed.
In the Price box enter the total amount being paid.
Now click on "Update".
Next, choose your payment method and enter client/card holder information.
Now click on "Review and Continue" and the "Review Payment" page will be displayed.
Make sure everything is correct then in the "Message to Seller" box enter the Invoice # and any other information that may be pertinant.
Finally, click "Pay"
* If you want to cancel the payment click "Cancel and Return to Merchant."