Coca-Cola Cherry Vanilla Challenge (main page)
official rules (AMOE)

The March Madness contest has an instant win portion and a portion where you can collect NCAA March Madness teams for bigger prizes. You may have to sign up for the contest at the “Enter Now” button, and then login every day before clicking on the AMOE in official rules (or use sip & scan).

Instant win prizes: $10 prepaid card (shipped by mail), Coca-Cola phone grip, $5 UberEats, $2 Amazon.