Called Marriott number 1-800-535-4028 and asked for the Platinum challenge. 16 eligible nights by end of June. A Marriott Bonvoy® Member can only participate in an Elite Status Challenge once between January 1, 2022 and December 31, 2023. A Member cannot register for more than one Elite Status Challenge at a time, or switch between the Gold Elite and Platinum Elite Status Challenges during the promotion period. There is no retroactive registration for the Platinum Elite Status Challenge. Registered Members can earn Platinum Elite status after they book and consume sixteen (16) eligible paid nights during the earning period. Earning period starts the day after members register through the end of the month, plus an additional three (3) months. Nights consumed prior to registration for this promotion are not eligible for this promotion.