Calling all Starbucks fans! Through December 20th, you can score a FREE $5 Starbucks Bonus eGift Card when you buy a Starbucks eGift Card worth $15 or more! Note you must use the Starbucks app and pay using MasterCard to snag this deal. The $5 Bonus eGift Card will be sent to you via e-mail. Limit of one bonus card per customer. First 150,000 only. Sounds good!