Welllllll not really.... your CO number has to be in there for you to be eligible for your Silver Upgrade. After you get the upgrade you can try to change to your WP number, but some have stated that the CSR will make you forfeit your upgrade ifd you try to change the program. Try to check in at either the kiosk, or on-line. I believe both will let you put in a different FF number, without forfeiting your upgrade.