Chase CO Platinum MasterCard holders are upped to World MasterCard.
I think there is some kind of pre-selection/qualification involved - not the least of which is suggested by the "fine print" which states that if some kind of credit payment protection (I guess it's that "insurance" for covering payments due to loss of income or other inability to pay), the upgrade will not be granted.
Are these "Signature" and "World" products really premium cards, or just another marketing ploy, like a "Titanium" card I've seen floating around out there?