I am very confused about these benefits. We have an upcoming stay at the JW in Cancun - a room on the Club 91 level. This is not a concierge lounge-but paid Club like Griffin Club etc. I was going to request an upgrade via SNA, yet no rooms presented included Club. I called Marriott Titanium Line. They said if I was upgraded, I would lose Club access. That was part of my original rate and features. Does that make sense? I thought SNA's just got you a better room. Why would I lose something else? What would happen to other features of a rate? What if it included breakfast or rest. discounts etc?