Don't know if anyone has tried the Z38 code recently, but it now shows published rates.

This is from the website:
The Ritz-Carlton Rewards Credit Card, includes upgrade at time of booking to Club Level, Book, change, or cancel only by 800-265-2270, based upon availability, must pay with The Ritz-Carlton Rewards Credit Card, 100 USD hotel credit per stay, see Rate Rules

https://www.ritzcarlton.com/en/Prope...1&up=false#top