下面是之前客服的回复邮件~下面3个条件满足一个就可以~
Warm greetings from ONYX Rewards and thank you for contacting our Customer Services!
Please kindly refer to our policy according to tier match that members must proceed as follows;
Forward the latest email from SPG that clearly shows your membership details to this email
Take a photo of your membership card and send to us
Provide your booking details toward your coming stay at any ONYX Rewards hotels (booking ID or confirmation number)
Upon completion on above mentioned, we could match your tier before your check-in date so that you could enjoy our Platinum benefits further. Kindly note that tier matching is not a public offer in which we reserve the right to consider on this privilege case by case.