Amex has 2 offers running currently
1. Spend $15 or more, get $5 back Shake Shack in NY and MA (Almost All my amex cards had this one - Comes up when you login from the mobile app ONLY)
2. Spend $10+, get 500 Membership Rewards® Points. Up to 2x Points (Only 2 of my cards had this one).
For people that have both the offers on more than 1 card can make it even better.
Since i had both the offers on 2 of my cards My Transaction was:
1st Purchase -1 $25 Card (got a $5 bonus Card) - Charged $15 on card #1 and $10 on Card #2. (Gave me $5 Back on 1 card and a total of 1000 Points)
2nd Purchase -1 $25 Card (got a $5 bonus Card) - Charged $15 on card #2 and $10 on Card #1. (Gave me $5 Back on 1 card and a total of 1000 Points)
Got total of $60 in Gift Cards Paid $40 and got 2000 Points.