We know there's no dedicated 1K line anymore, but what exactly does this mean (received as part of a pre-flight email, entitled "Quick reminders about your upcoming trip to xxx") :

Top-notch Premier 1K service when you need it
You can connect with a specially trained representative dedicated to assisting our MileagePlusŪ PremierŪ 1KŪ members anytime. For service in the U.S., Canada, Puerto Rico and the U.S. Virgin Islands call: 1-800-756-1000.

Wonder what that 'special training' entails.