Per Starbucks.com: Most Starbucks locations in North America accept your Starbucks Card. Certain Starbucks-branded locations may not permit you to use the Starbucks Card for payment, including some airport, grocery and bookstore locations, or in stores in Puerto Rico, Guam and those outside continental North America. For an up-to-date list of stores that accept the Starbucks Card, call 1-800-STARBUC Hope that helps!