Both me and my wife received this email. Not sure if it is targeted hence the YMMV in title.
Email subject : "I'll have a free drink, please"
Order any food or drink today, get a free drink next time
Come in between October 27 – 29 and purchase
your favorite drink or bite to eat, and we'll load a
coupon for a free handcrafted drink to your
account within 24 hours.*
Your free drink coupon will be valid for 7 days
after you make a qualifying purchase. Check the
pay tab in the app, or ask your barista to use it.
Enjoy this offer once.
cheapest items String cheese is 95¢ and a banana is $1