Here’s an offer that I just received from SPG. You can earn 500 bonus Starpoints per stay, (up to 3 stays) when you register for this offer and use the SPG app to book your stays with your American Express card. Starting today through March 31, 2015.

500 Bonus Starpoints Per Stay (Max 3) 

Bottom Line

Register here for bonus Starpoints, use the app and pay with Amex. 3 stays = 1,500 Bonus points! Win!

See more Starpoints bonus opportunities here.

Fine Print: 

Registration and Earning: Members must register online with a valid SPG account number at spg.com/appamexbonus by March 31, 2015, midnight Eastern Time (ET). Registered members, who have downloaded one of the SPG mobile apps, are eligible to receive 500 bonus Starpoints for up to three booked and completed stays December 10, 2014 and March 31, 2015 (the “promotion period”) that were booked through any SPG mobile app and charges were settled with any American Express®Card. Bookings made prior to the promotion period are eligible, but only eligible stays consumed during the promotion period will receive bonuses. Check-out must occur on or before March 31, 2015 to be eligible for bonus Starpoints. Registered members may earn a maximum of 500 bonus Starpoints per eligible stay, and maximum of 1,500 bonus Starpoints during the promotion period. This bonus is eligible at all properties that participate in the SPG program.

Bonusing: You must first register for this offer, download one of the SPG mobile apps and then use the SPG mobile app to book a stay using any American Express®Credit or Charge Card.

Eligible Stays: An Eligible Stay is defined as one or more consecutive nights paying an Eligible Rate in the same hotel regardless of the number of check-ins or checkouts that occur and post to the member’s Starwood Preferred Guest® account. Eligible Stays with at least one night in the promotion period will receive a bonus. An Eligible Rate is any rate that is eligible to earn Starpoints in the Starwood Preferred Guest program. A description of SPG-participating hotels and resorts and of Eligible Stays and Eligible Rates can be found at spg.com under Terms & Conditions of the SPG program. See Section 1.4b iii for the complete definition of Eligible Rates.

Qualifications and Starwood Terms: All promotions are subject to the Starwood Preferred Guest program terms and conditions, which are subject to change without notice and can be found at spg.com. Offer is applicable to individual members only and not to groups. Not responsible for omissions or typographical errors. Starwood reserves the right to discontinue this offer at any time. Fulfillment of the offer is the sole responsibility of Starwood. To update your communication preferences to learn about our privacy, or access our privacy information line by calling 1-877-782-0071 in the U.S. and Canada or +353-21-4930474 in all other countries. Starpoints, SPG, Preferred Guest, Sheraton, Four Points, W, Aloft, The Luxury Collection, Le Méridien, Element, Sheraton, St. Regis and their respective logos are the trademarks of Starwood Hotels & Resorts Worldwide, Inc. All Rights Reserved.