Hurry over to cokezero.com/preform to score a coupon for a free 20-ounce bottle of Coke Zero! Click on the red “Redeem at Target” button and enter your birthdate and phone number. A text message will then be sent to your phone with the coupon. If the form doesn’t work on your computer, try the link from your phone and it should go through. Don’t wait–this offer won’t last long!