http://www.ichotelsgroup.com/h/d/pc/...mbassador.html

"Enjoy a free weekend night on us:

As a special gift for signing up now, we’ll welcome you to Ambassador with a complimentary weekend night certificate, to be enjoyed during a minimum two-night weekend stay. Like Ambassador status itself, your certificate is welcome at over 140 InterContinental Hotels and Resorts, anywhere in the world."