What is a monthly Double-Star Day? How will I know it’s my monthly Double-Star Day?
Monthly Double-Star Days are a new benefit for Gold members.
If you are a Gold member, once a month, on your designated Double-Star Day, you will earn four  Stars for every $1 spent* when paying with any registered Starbucks Card at participating Starbucks, Teavana or Evolution Fresh stores. [Online and grocery purchases are not eligible.] You’ll earn double Stars no matter how often you come in, what time of day, or what you buy.
Each month, we’ll surprise Gold members with a different day to earn double Stars, so opt into email to know when your day is coming. If you want to check that you got your Double Stars, check your History online or in the app, and look at the transaction details. The Stars you earned will be the "Total applied toward Stars" x 4, as in the following example - $2.75 x 4 = 11.1 Stars.
*Stars may not be earned on purchases of alcohol and Starbucks Cards. Taxes, tips, donations and fees may also be excluded.