US Starbucks Cards can be used in certain other countries[1], and international money transfer would be a plausible excuse for requiring such information. Howev

US Starbucks Cards can be used in certain other countries[1], and international money transfer would be a plausible excuse for requiring such information. However, that doesn't seem to be the case for Argentine Starbucks cards[2]. [1] "Most Starbucks, Evolution Fresh and Teavana stores in North America including Puerto Rico 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 stores in Guam and others located outside continental North America." https://www.starbucks.com/about-us/company-information/online-policies/terms-of-use/card https://www.starbucks.com/about-us/company-information/onlin... [2] "La Starbucks Card activada en Argentina no podrá ser utilizada en tiendas Starbucks ubicadas fuera de Argentina. La Starbucks Card activada fuera de Argentina no será válida en Argentina.", which Google translates as "The Starbucks Card activated in Argentina can not be used in Starbucks stores located outside Argentina. The Starbucks Card activated outside Argentina will not be valid in Argentina." https://starbucksrewards.com.ar/tos/card https://starbucksrewards.com.ar/tos/card