Originally Posted by rhu171

The entry level suite is the Grand Duplex. You can try emailing [email protected] to see if they are willing to confirm an upgrade into Grand Suite King for you. IME, they are very responsive and normally will respond within 24 hours.

Anyway, if I were you, I wouldn't worry too much about using the DSU. As a Diamond, you'll most likely be upgraded to a Grand Deluxe room, which is basically a junior suite.