Just received this email from US bank for Cash + credit card
Reward yourself this spring! Earn 20% more cash back (up to $20) on additional net purchases, including online, once you spend $300 in net purchases with your U.S. Bank Cash+™ Visa Signature® Card from March 1 through April 30, 2019. Be sure to enroll by March 31, 2019.¹
Here's how to enroll:
Provide this promotion code: 8116417015860
Use your card for everything this spring — from last-minute errands to shopping online! As long as you're enrolled by March 31, 2019, net purchases made during the entire promotion period will count toward this special offer.