While Hyatt rarely posts your bonus points correctly at first and this is a big deal with other programs, they make it right with a quick call or e-mail. Bonus Point Booking: 1. I suggest making your reservation without the Gx code because I, and others, have seen the rate increase with a Gx code. Unlike other programs, you do not have to book with the Gx ahead of time. This rule doesn't apply if the bonus code is a rate code as opposed to a G1/G2/G3 or A1/A2/A3/A4 code. 2. Ask the desk to add your Gx bonus at check-in. If you elect miles, you cannot "double-dip" with a Gx bonus. i.e. you must choose points if you want the Gx bonus, miles if you want the Ax bonus, and choosing miles precludes you from receiving a Gx point bonus. As a Diamond member, you can get your 1,000/500 welcome amenity points along with your Gx bonus OR with your miles. 3. You can check your bill when checking out for the Gx (and other) codes and ask the agent to add before departing. You may also just note the discrepancy and plan to call/e-mail later. 4. Your stay should post in a few days and you can log into "My Account" and check the details of your stay. Confirm you received miles or the appropriate level of points. If not, call/e-mail Gold Passport to add the missing Diamond welcome amenity points or Gx bonus. Diamonds who had miles posted for the stay will usually need to call/e-mail for their welcome amenity points to post correctly. 5. If points post and you requested miles, just call/e-mail Gold Passport. If miles posted but you wanted points, sorry, they can't reverse a miles posting. I always just choose points and if I decide I want miles, I change it after the stay. This gives me the greatest flexibility. Airline Bonus Miles: Be patient. While Hyatt sweeps daily for the miles, your airline only sweeps a few times a month so there could be a several week delay before your mileage account is credited. You can't set miles as your earning default in your account unlike other programs.