1. I range the US AA RTW desk, told them i was australian, would be paying with aus credit card in australia. Then rang oz AA desk with card and paid over the phone. (australian price was not _as_ cheap as the ICN one, but close enough for me).

Next time I thought i'd probably fly to south korea, _then_ book the trip and pay the AA desk at the airport, and then explore korea for a while before starting the trip. (only recommended for the adventurous with spare time and flexible plans). Some other thread in here mentions a Seoul TA i think.

2. I had to do it by ringing each carrier before the flight. JAL took it over the phone and then ignored it (re-allocated me away from exit row) on the day. BA said I have to go to an airport desk, they don't take it over the phone.

AA told me they can do some carriers and flights, but they can't for asian flights.

3. The only itinerary i have is the email they send. Nothing online.

good luck ! AA seem to be tightening their rules. Also, I would consider waiting until 1st/2nd of april and using the online tool to price an ex-ICN with an initial JAL flight. I read a news article that said their fuel surcharges are being massively reduced from 1st april.

(i would have used the online tool for sure if i could have escape the whopping big fuel surcharges)