Originally Posted by IADFlyer123

Not quite sure if this is a one-time thing for you or not, but the rewards plus site clearly states "For Marriott Rewards members who are Platinum Elite (including Platinum Premier and Ritz Carlton Rewards Platinum), the RewardsPlus program offers complimentary Premier Silver status in the MileagePlus program (registration required). The status is valid for the remainder of the calendar year in which the status is granted. Marriott Rewards members who have temporary Platinum Elite status due to the Marriott Rewards Taste of Elite program are not eligible for RewardsPlus complimentary status."