If you have trouble registering, you can ping Marriott Bonvoy via their socials (Facebook or Twitter) with your member number and they will register you from their end. I had trouble with the similar promo from Q1 last year, and they did that quite quickly for me.
This time around I was able to register this Global promo via a PC browser, and see this and other offers I’d registered in Promotion Central on the same device… but I don’t see this offer or others registered on my mobile/app. Classic Marriott I.T.
I reached out through Twitter .. they quickly signed me up as I could not via the link. Problem is I don't see it in my Promotions tab .. anyone else ask Bonvoy to set them up but not see the Promo in their Promotions tab on marriott.com?
From just $6 we'll remove all advertisements so that you can enjoy a cleaner and uninterupted viewing experience.And you'll be supporting us so that we can continue to provide this valuable resource :)