I,ve done a lot of travel on a lot of airlines. Never have I had an airline confirm a flight and seat assignments and then just cancel those seat assignments with no notice. Still on the flight, but am being told I can have three seats together in last row, next to toilets or I can wait until 24 hours before take off to try for other seats. Won't even accept payment for priority seating.
I had seat assignments but these were cancelled due to "reconfiguration due to merge with Continental". Okay, but why no notice, why not able to get reassigned seats. Am told that flight is not sold out, just they won't assign seats.
Last time I fly United/Continental.