Amex 3x Referral Bonus And Earning 300,000 Points In Three Months American Express has a new, limited time only (10/1 to 10/28) offer for their consumer card members. When you refer a friend to an Amex card that you currently hold and that friend is approved for that card, you will earn 3 more Membership Rewards points per dollar for three months. This Amex 3x referral bonus … [Read more...] about Amex 3x Referral Bonus And Earning 300,000 Points In Three Months