I just got this notice. Since the time of the flight was the same, I looked more closely at each line. My seats- previously row 12 were now 47 ( out of 48). I went on line to move them back and could only get row 14. I am really annoyed since I booked this flight 7 months before the flight specifically to get these seats. Otherwise would have gone to J which is now sold out. Has anyone had this happen? Any recourse suggested? Thanks.