Welcome to Flyertalk. The general mantra is that one should arrive at the airport two hours prior to departure, even if one expects the security line to not be long. Should you feel you have further complaints with United, I suggest writing rather then calling. Also, a further tip. Should you receive information from a phone agent that doesn't sit well with you, don't ever ask for a sup. Hang up and call again. Good luck and let us know what you end up receiving.

aloha