On 5/1/2021, as a new BWR member, I followed directions inserted below. After 24 hours, I did not receive an automated reply from BW. I began searching for comments about the promo. I found this site. I followed the US link from the 1/13/21 guest and submitted the online form. No immediate auto reply. I'll update this post when I hear from BW.
"To match your ELITE status in any other hotel program, email us at StatusMatch@bestwestern.com
with the below information, and we'll take care of the rest.
Best Western Rewards Member Number
Proof of Elite status in another hotel program: Screenshot or copy of your other program's loyalty card or account statement
Enjoy your Status Match upgrade at any Best Western branded hotel worldwide until January 31, 2022, without meeting tier upgrade requirements."