This is ridiculous and Hyatt needs to get it's act together. First they make us call to apply suite upgrades (which is annoying enough). Then they send an email with a higher rate and to those who aren't in the "know" we have to call back to understand what happened. And of course as this thread shows - what you really need to do is wait 24-48 hours for the hotel property to fix your rate. Who is running the IT show over there?
If they don't want to fix this from an IT perspective - at least put a note in the immediate email they send stating that the rates will be modified within 24-48 hours so we don't spend time on hold with Hyatt CS watching them fumble around trying to explain what happened.