Originally Posted by
Oxon Flyer
As per the wiki at the head of the thread :
The additional 3,000 bonus points after completing three eligible paid stays at different Marriott Bonvoy participating hotel brands, will be awarded to the member’s account up to 6 weeks after the promotion earning period ends.
The spurious comma after "hotel brands" is from Bonvoy's crack team of promo T&C writers, not me.

Thanks... my reading comprehension was clearly missing.