I have to agree with
MichaelA380 on this one:
Diamond elite's welcome amenity breakfast will only be offered/registered
to the room for which the Diamond elite member ( + 1 extra person if double occupancy room)
has
booked AND is physically present/staying/occupying in own person that said booked room
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OT:
The only program that offers perks for other rooms that you are NOT occupying in person is
WOH Hyatt for Globalist status : guest of honor
https://onemileatatime.com/guides/hyatt-guest-of-honor/
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https://onemileatatime.com/guides/hyatt-guest-of-honor/