챌린지가 특정 회사 직원들 한정으로 돌아온 것 같습니다.
확인 링크입니다 (확인하신 후 오는 이메일에 "Verify Email" 링크를 누를때부터 시작 됩니다.): https://world.hyatt.com/content/gp/en/offers/elite-tier-offer.html
"This offer is open to employees of an unspecified list of companies. You can always try your luck by entering your membership number and company email."
https://milelion.com/2024/01/20/world-of-hyatt-offering-instant-explorist-and-globalist-fast-track-for-mnc-employees
개인적으론 처음 챌린지 참여해보네요. 기대됩니다. 굿럭!