"FlyerTalk directly documents Grand Hyatt Tokyo staff awareness: "Memo from WoH Concierge to GH Tokyo: Beware of guests using CS code without proper ID" — implying the property is actively watching for unauthorized Credit Suisse code use. A Hyatt Regency Tsim Sha Tsui guest received a pre-arrival email requesting verification, resolved only by replying from a CS corporate email. Financial-sector codes are the highest-risk Hyatt category. Credit Suisse (now UBS following 2023 acquisition) triggers additional suspicion because the acquiring company may no longer honor old CS codes."

"Just no. I use my own corporate code all the time and get asked every so often but not always. It’s like speeding on the freeway, ur not gonna ticket every time but you will get caught eventually. Doesn’t give you the green light to drive 100mph every time since you only get caught once in a while."

"Stayed there June 2025 and they asked to see my badge. They didn’t really look at it to be honest- I work at a tech company where no company name is on it. I’m a globalist and find they just want to see badge as an ask vs actually verifying ID badge. Seems it is different for each person based on comments. I’ve never been asked to send an email from corp account. 🤯"