Use Android Pay on Nexus Phone by Dec 31st to get $20 Best Buy Gift Card

Google is offering a promotion to increase the number of customers using Android Pay. If you sign up with Android Pay on any Nexus phone running an official build of Android KitKat or above (sorry Galaxy Nexus owners!) and make any purchase at any qualifying merchant, you'll automatically receive a $20 Best Buy e-gift card within a few days. Hurry while their supplies last!

source: xdadevelopers