Immediately matched in seconds to Explorist from my MLife account online. I'm a Gold MLife member. Simply log into your MLife account and go to preferred partners section. Status matched from now (Dec 2019) through Feb 2021. Here is direct link at MLife: www.mgmresorts.com/en/mlife-rewards-program/preferred-partners/hyatt-hotels.html
Once you click the "opt in" button half way down the page it directs you to Hyatt and it all syncs automatically. Nothing to submit.
Booking my first Hyatt trip tonight!
on December 10, 2019