Earn 20,000 Amex Membership Rewards points just by adding authorized users

Heads up! We share savvy shopping and personal finance tips to put extra cash in your wallet. Android Central may receive a commission from The Points Guy Affiliate Network. Please note that the offers mentioned below are subject to change at any time and some may no longer be available. Pile on those points with a new promo offer What you need to know American Express has a new targeted offer for its Platinum cardholders. Adding authorized users can net you up to 20,000 Membership Rewards bonus...