Just got this in my email. It's geographically limited to residents of Chicago area, Houston area, SF Bay area and Northern NJ. Clickthrough leads you to this URL: https://enroll.amexnetwork.com/US/en/ticketmaster50/ Dear DUCSTER, As an American Express® Charge Cardmember, you can get more out of the events you love with exceptional access to what's hot in sports, theater, music, and more. From advance tickets to unforgettable insider experiences, your membership can make it happen. You can get a $50 statement credit when you spend $150 or more on ticketmaster.com fromSeptember 12 to September 16. To get this exclusive offer, simply enroll your American Express Charge Card then use the enrolled Card to purchase tickets to any event. We hope you enjoy this opportunity and the many other advantages of membership.