Ok... so now i know exactly what it is. Will share my experience soon, just time to write it. Tips : Hyatt Insider is the worst of Hyatt world = Customer service + IT + marketing. Place to avoid at all cost if you are not a Fan boy or want to get good relationship with them in order to maybe get some advantages one day. One word : useless and i would say more, it's at the image of hyatt marketing : totally from another century, managed by incapable people.

Sometimes i wonder how a company with such amazing properties can be run by such people and deliver such a bad IT / CS and marketing. Mystery...