Make sure that your status (gold) is noted in the "My Account" section of CO.Com. If it is, then depending on your itinerary, the EUA will run for you (at the earliest) very early Tuesday morning. If you have chosen to receive an email confirming your upgrade (E-mail Settings>>Elite Upgrade Notification), you will be emailed. You can search on this forum and find many threads discussing variations on that theme (e.g., EUA only running three hours before certain flights,etc.).