Wow, that sounds awful. I have to say, since GM Sholto Smith left I noticed levels slipping. No more handwritten cards, spelling my name wrong on printed cards, no more complimentary amenities.
Did Evelyn and Mirna in the club lounge not woo you with their charm? In my mind they make the hotel.
I have never, in at least 8 years, been told Radii is full. It's F1 Grand Prix week too. I have also never had issues with the wifi, however now wifi is free to all guests it may be a different story.
May I suggest you send an email to the property and Hyatt Corporate Care?
Curious, though, why you didn't ask to change suites?