Update: Alive again through 12/15, details here!
Send a $25 Starbucks eGift Card to yourself or someone else and you’ll get a $5 bonus eGift Card. Promo valid today only while supplies last. Check this page to see if promo is still active before you buy. The page will change to expired if the promo gift cards are exhausted.
You can click on redeem your gift card and follow the prompts to transfer the gift card balances onto your existing Starbucks card.
I just sent a $25 gift card for myself in the Starbucks app and got the $5 bonus gift card emailed to me instantly!
Best of all, I paid on my Marriott Brilliant card, so the $25 will be refunded thanks to the card’s $25 monthly restaurant credit.