Originally Posted by
pinniped
I've read a few cases of people with hacked accounts getting their points redeemed for China/HK stays. (Not just Marriott...more of a general thing.) So anything regarding different names on reservations, I'd play by the book and call Marriott directly ahead of time.
It might take them out of the upgrade pool but as a Gold you're not talking about a huge upgrade anyway.
Same last name usually isn't an issue....I've had my wife check-in lots of stays with the same credit card in my file with Marriott. But in HK I would not assume this will work.
+1. There are a few times where my wife checked in before me for an award stay or FNA for a domestic stay. We have the same last name and use the same credit card and had no issues. I have also done this a few times with IHG. I wouldn't attempt this outside of the USA. Too much risk for my taste. YMMV....
--Jon