I'm a 75K and I only recently figured out that I can do a same day change at T-24.
My partner is MVP Gold and I tried to change her flight and it is not giving me a change flight option at check in. Is this a feature that is unique to 75K (change at T-24) and are MVP Gold still limited to 10pm the night for making a change? The confirmed flight change benefit is described the same way for both tiers on the website.