So I called a few days ago (maybe 5 days from departure) and they were able to move my spouse to F no problems. Today I saw 1 more F seat open on the HND-JFK segment(our flight leaves today from BKK and tomorrow from HND), but they weren't able to change me to F even after HUCAing once. They both said they cannot see the space when trying to change either the HND-JFK segment or the whole BKK-JFK segment. Anything else I can do here? I'm not too familiar with Alaska or JALs married segment logic and if that matters here.

EDIT: ended up calling 4 times and the 4th time they were able to process it. Cheers!