Through the Priceless Cities offers for MasterCard cardholders, you can get a complimentary upgrade to a Superior Suite at The Allerton Hotel in Chicago. Book your hotel room at http://insideflyerus.wpengine.com/link/?11810 or call (533) 778-7999 and mention promotion code MASTER1 when reserving your room using your MasterCard. You must show your MasterCard at check-in to get your suite. MasterCard holders must book by Dec. 31, 2014 for stays through Dec. 31, 2014. The Allerton Hotel Chicago is on Chicago’s Magnificent Mile.