After seeing that even Gold was matched to Diamond Hyatt, I sent IHG Platinum and Hilton Diamond screenshots showing my status and points. Waited for some time then got an email saying that they`d need another screenshot with the stays - sent that. Waited again. Received an email saying that they would match me to Platinum while I was Platinum through Chase Hyatt card.
Called Hyatt and spoke to Brittney (?), she didn`t even ask for my number or anything, she just said that no matching other than to SPG starting from November 20. I said why did you people asked me for multiple screenshots in December if you saw IHG and Hilton? She was rude and responded with some nonsense. I asked for a manager, and she said she was one.
What a disgrace and waste of my time!