Came across this landing page:
https://www.hiltonhonors.com/en_US/F...amond/landing/
Receive instant Diamond Status through April 29, 2024 with this special offer. Plus, stay 6 nights to earn Gold Status or 12 nights to maintain Diamond Status by April 29, 2024 and you'll enjoy elite benefits through March 2026.
However it doesn't work for me. I always get this error after signing in: Oops! We've encountered a problem. Our online registration isn't working at the moment. Please check back later or contact Hilton Customer Support for assistance.