If you're upgrading using one cert for a multi-segment itinerary, make sure you ask the collecting agent/station to make a note in your PNR that it's been collected. AC's system is designed to remind the agent to collect an upgrade cert for each segment (stupid IMO, it should only be done for the first segment of a day's itinerary) at the gate; so if the agent don't see a note saying it's been collected, they could insist another one from you and say they don't believe that you've already surrender one.

This is especially important this year as the S/SWUs are rare and you can't afford to give an extra one when you don't have to.

[This message has been edited by Empress (edited Feb 10, 2004).]