Which cards qualify for the Mastercard Priceless Cities 3 nights for price of 2 offer at SPG hotels?

Hi All,

does anyone know which mastercards are valid for Mastercard Priceless Cities 3nights for price of 2 at SPG hotels??
is it any mastercard or targeted?



I believe any mastercard that has been registered for the promotion will work.

There is a new PointHack article up discussing this in more detail. link