I'm Lifetime Diamond with Hyatt. Called Marriott to ask for a status match. Representative first said they don't match status and didn't mention a challenge. I asked here why I'd ever stay at Marriott if that's the case. That's when she offered a challenge. 6 stays in 3 full months. Since we just started February (called on February 2) I have until May 31. Did not have to send proof of Hyatt status.
Platinum Premier Elite with Ambassador
on February 2, 2017