I booked a flight on United.com for a flight that is operated by Edelweiss. I would like to change seats however that's not possible at United.com, United gave me a booking code that works with Swiss.com however I can't change seats there either. Neither works at Edelweiss.com, has anyone had this issue or figured out a way around other than contacting Edelweiss which I have via FB just waiting on a response. I'm quite surprised I was assigned at all but it's in the very last row.