Entry is wide open to any member of the following eight competing hotel rewards programs:
Accor Live Limitless (ALL)
Best Western Rewards
World of Hyatt
You don’t need to hold high status in any of those schemes – even the basic entry-level membership will suffice.
That Platinum Elite status is yours for the next 120 days, immediately unlocking some practical perks such as 60% bonus points every time you stay, guaranteed room availability, early check-in and complimentary room upgrades (subject to availability)
Stay at any IHG group properties for just five nights within those 120 days and your Platinum Elite status is locked in until December 31, 2023 – yes, almost 18 months at IHG’s second-highest tier. And if you stay 15 nights in those 120 days, your IHG Rewards One status will be elevated to Diamond Elite – again, yours to enjoy through to December 31, 2023 – with all the creature comforts of Platinum Elite plus plus free breakfast and 100% bonus points.
Note that your stays must be booked directly through IHG or the hotel’s web site, with the promotion’s Terms & Conditions spelling out that “bookings made through on-line travel agencies or other reservation sites such as booking.com or expedia.com are not eligible for this Promotion.”
Open to new and existing IHG members. I just tried it myself using Hilton Honors as the program and it didn't ask for anything about my Hilton membership at all, just my IHG number and email. Immediately received an email confirming registration for status match.