The website registration page says it wont be open until april. As my SO is travling with me to HK next week I called the MP desk. i was on hold for about 10 minutes but then did get through. After verbally certifying the relationship (domestic partner) they completed the signup. I logged in as my SO and it said he was 1k. Do these benefits also accrue double mile benefit for 1ks?
What was confusing to me is the old PMUA site to register a companion is not the same thing and you must register with the new site.