The key to getting anything done is to have the captain go to the gate, and tell the agent directly what they want. i always laughed when people are onthe ops frequency..."yeah...ops, this is fltxxxx, still waiting for commo." I used to just go and asked for it personally and NEVER once had a problem getting what I wanted in a timely manner. People working at ORD tend to feel a bit persecuted, so if you are even the least bit gracious, their midwestern sensiblity usually kicks in to 'get er done." it doesn't hurt that my dad is from there, so I understand the mentallity somewhat.
Mookie