Originally Posted by
villox
I called Hyatt and they said they don't have anything in their system that says United MileagePlus Club Card, they just have the Continental Presidential Plus card in their system. So I said "that's what it is" and she upgraded me manually (she didn't ask for the number or anything, so I guess she just overrode it and trusted me). Already shows reflected on the Hyatt website.
I got the same response from my Hyatt agent. I guess it's not communicated consistently just yet. She insisted that Hyatt has no partnership with this card, lol.
Anyway, I ended up getting it done by @hyattconcierge on Twitter. Another great social media presence.