Heads up, folks:
I just checked My Trips on the Marriott website and a disaster has struck.
My reservation confirmation numbers from 2018 for Design Hotels/Starwood properties were changed. Along with these changes are inexplicable changes in the reservations themselves.
One reservation was changed from 2 rooms to 5 rooms, with the accompanying increase in payment due.
One reservation was completely eliminated.
I have spent 2 hours trying to get back my hotel reservations. Two of three reps would not help. Third time was the charm. It was supposedly fixed, but they are still not listed or the details are incorrect on the website.
Beware and Good luck!