In case anyone isn't on their mailing list, there is a flash sale that appears to offer about 25% off. Note, there is some odd wording about not earning points on the accommodation/benefits and similar which seems to be against Marriott's general spirit of the T&Cs.
https://www.buys.hk/rchk/html/flash-...eckout-en.html
Don’t miss these:
• $500 Dining Voucher – from HK$500 to HK$345
• $5,000 Accommodation Voucher – from HK$5,000 to HK$3,445
• Tin Lung Heen Six-Course Set Menu for One (Lunch or Dinner) – from HK$888 to HK$657
• Tosca di Angelo Weekend Four-Course Set Lunch for One – from HK$748 to HK$554
• Café 103 Dinner Buffet for One (Sunday to Thursday) – from HK$738 to HK$508
• Café 103 Dinner Buffet for One (Friday to Saturday) – from HK$768 to HK$529
• The Lounge & Bar Afternoon Tea Set for Two – from HK$698 to HK$481
• Ozone Sunday Brunch For One – from HK$488 to HK$336
• The Perfect Roast Takeaway: Roasted French Chicken served with selection of garnish, soup and cake (for four persons) – from HK$1,500 to HK$1,034
• 120 Minutes Unwind Body and Mind Experience – from HK$3,250 to HK$2,239
• One Month Fitness & Pool Membership – from HK$6,888 to HK$4,746
• Catering & Events Gift Voucher (Valued at HK$40,000) – from HK$40,000 to HK$30,000
• Elegance and Vibrancy Mooncake Gift Box – from HK$398 to HK$274