Originally Posted by
NYC2SGN
I tried calling a third time and after insisting to be transferred to the payments department, the payment agent said it's not possible because the first segment of my flight is on UA. I'll keep calling but this is pretty sad
This makes me feel better. I'd still like to try selecting my seat in advance, but if worse comes to worst, I'm sure it'll be a nice short flight. I'm a vegetarian, so at least I can count on there being vegetarian food.
Do you have your AI PNR? If not... get it from UA or AI and then go here
https://www.optiontown.com/home_page...=SelectProduct. You should be able to do your upgrade from here. AI uses Optiotown in the backend and you can do this directly from them as well... costs etc. remain the same.