True. Get all info before you call from DL.com. Look at the flights you want and be prepared to give the Rep Flight #'s and times.

This happened to me on a upcoming MR flight next weekend (DL changed my flights)
When I called. I gave the Rep all the info of the flights I wanted. She said it will be "Free and No Charge" to me because DL changed their schedule.

She said whenever DL changes the schedule there will never be a charge to passengers. States always to call and never go online to change flights.