NEW YORK--(BUSINESS WIRE)--American Express (NYSE:AXP) and Plenti, the first loyalty coalition involving major U.S. brands today announced a new cobrand Credit Card for Plenti members to help them earn more Plenti points to use towards savings at participating Plenti U.S. retail locations. The Plenti Credit Card from Amex, available now, is a no-annual-fee Credit Card where Card Members can earn 1 Plenti point for every dollar spent on eligible purchases, in addition to the Plenti points earned