I received the email below.
As you are already an elite member, Platinum with Marriott Rewards, we realize your potential patronage of Starwood Hotels & Resorts Worldwide is great. As a result, we have upgraded you to the Starwood Preferred Guest Platinum Preferred Level good now thru 2008.
This is a one time only exception. In order to retain your Platinum Level membership for 2009, you will need to have a minimum of twenty five stays or fifty room nights. This number is based upon a calendar year basis, January 1 through December 31.
A Starwood Preferred Guest Platinum Preferred card has been ordered. You may expect your card to arrive in approximately six to eight weeks. In the meantime, you may print a copy of your temporary card from the Starwood Preferred Guest Website
http://www.starwood.com/preferredguest. Should you have any further questions or concerns, please feel free to contact us at 888-xxx-xxxx.
Welcome to Platinum
Best regards,