Does anyone know how the email address structure of Radisson hotels?

Specifically I am trying to figure out how to email the General Manager of the Radisson Hotel & Suites Sydney. I can see her office is very active in handling TripAdvisor reviews. However I haven't found any email address after scrolling 10's pages of the reviews.

Need to email the hotel to clarify a rate issue - have bookings using US Bank / Club Carlson Visa E-Certs. The reservations used to show the rack rate, then crossed out and resulting to a 0. Now online it shows the rack rate without the cross out. Though tax and fee remain 0 and total Room Cost shows as 0. However the rack rate without the cross-out like in the past really bothers me so I want to email the hotel to make sure the E-Certs are properly attached to their system.

Club Carlson is worthless when I emailed them on this issue. They replied that they forwarded my inquiry to the hotel management and request the hotel management directly reply to my inquiry. Basically Club Carlson does not want to be involved.