Thanks, tried to reregister several times, got this error. Of course, I have points selected and confirmed (having 1MM+), but I go around in circles. I've emailed them for help. Thanks for the help everyone.

Your registration can not be completed at this time. If you are a Marriott Rewards member and have selected "miles" as your earning preference, you must change your preference to "points" to participate in the promotion. To change, select edit earning preferences >>