American Express Travel advertised Four Seasons Hotel in Houston with a complimentary third night with a minimum stay of three nights. I have confirmed with four agents (Ranchael, Earl) that my dates are eligible, and somehow, the system did not apply the promotion. Amex Travel's system does the promo in a very unique and convoluted way. The discount is reflected in a lower nightly rate, often shown as the regular rate is crossed out, and the new rate would reflect the "free night." I see several problems with this practice. 1. Like my case, the nightly rate was NOT crossed out, leading me to suspect that the promotion wasn't applied. Most consumers would probably be unsuspecting, and this would have resulted in an overcharge. 2. Things like this must also be clarified for the Amex Agents. Most of them have attitudes and probably wouldn't bother looking into it. The agents I spoke with initially told me the rate had already been reduced to reflect the "free third night" until I proved them wrong. 3. I spent 2 hours explaining the error and finally got them to admit that it was an error, but they were ineffective in providing an error resolution. 4. This leads to unjust enrichment for Amex Travel. I suspect many consumers are conned into believing they are getting a discount. I have screenshots of everything. Amex would have gotten millions of dollars via this type of false advertising.