"GE International Hyatt code (13307) follows Hyatt's standard verification pattern for major industrial codes. FlyerTalk documents Hyatt as "notorious for checking ID, especially at Park Hyatt." GE International implies non-US travel, concentrated in Asia/Europe where Hyatt verification is highest. Park Hyatt and Grand Hyatt in global business centers regularly encounter GE employees and know what GE badges look like. Hyatt Place and House: essentially never check."

"I guess I just don't see this. I'm not saying rates never changes, but if it really changed every time someone booked a corporate rate, then the rates would change constantly. I can't say that I see this too often or ever. Also I doubt there's enough people doing this to have a huge effect on overall occupancy anyway."

"We may have an issue of semantics regarding the travelzoo code. Often when Travelzoo has a special rate for a Hyatt Hotel that rate is also shown in the "Special Offers" section for the particular hotel on the Hyatt Website. The code for the comparable "Special Offer" is 13147 which is often referred to as the Travelzoo code. As this code is available on the website, it gets both stay credit and points. At least, this is my impression."