At least they admitted to messing around:
First email:
Dear Mr. xxxxxxxxx
I am sorry to hear of your frustration and disappointment with your recent Tier Match. I certainly understand and appreciate the feedback that you provided, and I have ensured your comments are documented.
As part of a limited time special offer, we are currently matching elite status with peer programs to Hyatt Gold Passport Platinum status. At this time, the only way to achieve the Hyatt Gold Passport Diamond tier is to complete the normal earning criteria or to submit Starwood Preferred Guest information showing Platinum status, as well as 20 nights with SPG in the last 12 months.
Hyatt Gold Passport does run promotions periodically that may include expedited earning for elite status. While we are not currently running a specific promotion at this time please check back with us in the future, as our promotions do change.
Best regards,
Second email:
Dear Mr. xxxxxxxxxx
Thank you for return message.
I apologize for not more specifically addressing your concerns. The original announcement of the tier match promotion offered SPG elite members who were not already elite members of Gold Passport an opportunity to try Hyatt. Shortly after this promotion was announced on November 19, 2015, that promotion was expanded to offer this tier match to guests of any hotel programs. However, to protect the integrity of the Diamond program, this expanded offer was short lived and any guests who responded to the offer after November 20, 2015, were offered Platinum status (unless they could show proof of SPG Platinum status). Therefore, due to the short window of opportunity that opened the promotion to a wider audience, there were guests who may have been at a lower or equal level than yourself with a hotel program that have received Diamond with Hyatt.
Best Regards,