
I will be stying in Taipei Grand Hyatt (book through hyatt.com with full prepayment) in May.
I have also got a free suites upgrade coupon (received as a welcome gift for joining the GP), but noted that they can only confirm at check in for the upgrade availability.
As I am a Diamond GP memebr, will it be better to try my luck at check in or is it better to spent 6000 GP points to guarantee a 4 days' suite upgrade and book in advance?
Any other way to confirm the free upgrade with the hotel directly BEFORE check in?
Thanks