And sometimes they let you get the fare back. I put LAX-AUS-EZE-LAX on hold on 3/15 for $812 all in. I went back to ticket it today, and it told me the fare was now $899 all in. I called the Exec Plat desk, and the dude said he could ticket it for me under the old price, and he did. This could just be an example of undocumented Exec Plat benefits though.