Sent in a a polite email to
discovery@gha.com and asked them if they would kindly invite me to the Black tier of their program by matching my Hilton Honors Diamond status. Was GHA Discovery Loyalty Platinum status this year and I was informed by a staff on the phone last year to ask for the status match in January so I could get the Black tier for a year until Dec 31st 2020
Attached a picture of my Hilton Honors Diamond card for their reference. Until I got a notification that my GHA in my Apple wallet has changed I didn't even know I was upgraded. Tier upgrade to Black took 10 days (not working days) Black tier benefits includes excellent benefits like early check in (9am) and late check out (6pm) and double room upgrade (subject to availability)
GHA Discovery Loyalty has
35+ INDEPENDENT LUXURY HOTEL BRANDS
570+ UNIQUE PROPERTIES IN 78 COUNTRIES