American Express and Amazon have teamed up to offer select card holders 3 months of Prime membership for Free. This offer is only for new members, so it can’t be used to extend an existing Prime membership. This is a targeted offer, but all you need to do to know if you qualify is click this link and login with your Amazon account. If you don’t qualify, a message will appear at the top saying so. If you do qualify, you’ll just need to add your American Express card as a payment method on Amazon and you’ll get your 3 months of Prime membership for free.