Spend $10k, get 20k bonus points. Additional $5k, get an additional 10k bonus points.Register by September 9th, and complete spend by October 31st.Link: https://rewards.americanexpress.com/olet/splash?campaignId=gbdu0718&offerType=starwoodgbdu0004Mine had an RSVP code attached to it.
I assume this is Marriott points, not SPG.