I read some of the previous replies but I don't see someone experiencing the same thing. Sorry if I missed it.
I have an old 7 nights cat 5 certificate in my account. According to the convention, I would end up getting a new 7 nights cat 4 certificate. I am planning a trip to Tokyo early next year and found not even one hotel there is under cat 5. I tried calling Marriott customer service three times so far and all of them told me they can't upgrade the certificate level to cat 5 for me.
Has anyone successfully upgrade their certificate from cat 4 to cat 5? And If you did, what did you do to make it happen? Appreciate all the help.