Where can I use my gift Card?
You may use your Vanilla Visa Card anywhere Visa debit cards are accepted within the fifty United States and District of Columbia; however, it does not include the territories of Puerto Rico, U.S. Virgin Islands, and Guam. The Vanilla Visa Card cannot be used at merchants outside of the United States, including the Internet and mail order/telephone order merchants outside of the United States.
https://www.vanillavisa.com/faq.html