For business reasons, I need to buy 50 gift cards (Amex or Visa) with a value of $600 per card. The amount of the card can't be changed but i could buy two cards to total $600 (say a $500 card and a $100 card). Other than simply ordering the cards from Amex, does anyone have any suggestions on a way to maximize the points I can earn on this without incurring per card purchase fees in amounts that would negate the value of the points earned?