Originally Posted by joel67

Not sure if the computer will catch it, but it does remind me that you'd better claim that FC seat at least 20 minutes prior to departure time. Once I showed up only 15 minutes prior, feeling secure because I had a checked-in coach boarding pass and had received notification of the upgrade (was hanging out in the Presidents Club with no way to get a new UA boarding pass). They said FC was full and I had not been upgraded. When I pointed to my FC boarding pass sitting on the counter, the agent just tore it up and said that I hadn't checked in in time.