Is a Marriott Marquis recognised as a separate brand from a Marriott for the purposes of this promo? What about Sheraton or Westin from a Sheraton Grande or Westin Grande?

There are now all these "sub"-brands in Bangkok that I can't find any info in the website whether they are eligible, for example the Jubilee Prestige Hotel Ratchadapisek and the Montien Riverside Hotel Bangkok.