Send twitter DM to @HyattConcierge for status match request and wait for the feedback. Once DM received, send (a) your GP account, (b) screen shot of IHG card and (c) proof of IHG hotel stay history to goldpassport@hyatt.com by email. In less than 10 days, received message from Hyatt that my status upgraded to "Platinum" valid until February 2017.