Date 2nd unlock offer received: November 12
Current status and nights YTD: Silver, 15 Nights
The unlock offer received: 6,000 Bonus Point after 3 stays.

* Side notes - points posted to my account on marriott.co.uk (I'm UK based) took a further 'overnight update' to be reflected on the equivalent profile on the marriott.com site.

Objectively it's not a great bonus offer compared to current Hilton, Hyatt and IHG promotions but it'll work for me as the 2 triggering stays were both bargain-bucket 1-nighters earning 800 points or less each (incl. Silver Bonus), and I already have the 3 similar nights provisionally (i.e. refundable) booked for November so the collective 8000 bonus points will effectively bring the points earned for the 5 stays up to 3x the standard rate.

Since I already earned Silver through a Double Elite Nights promotion earlier in the year, and received an unexpected (and for which my Silver status wouldn't usually qualify me) Suite upgrade on my last stay I reckon I've done quite well out of Marriott this year so can't really complain.