UA changed my seat without notification
I originally booked the ticket from ord to ogg and the four seats were together in row 42. When I accidently checked my itinerary today, UA has changed my seats in row 50 for 2 and row 55 for another 2. and the original seats become preferred seats right now. what should I do right now? Call them and ask to move back without extra charge? did anyone have similar experience? I really hate to be put on hold for an hour to talk with these phone rep.