Norrille

Hi, I'd like to purchase a subscription and I only have an American Express card. I made an attempt to purchase a subscription with it, and I was told by the website "We accept Visa, MasterCard/Maestro, American Express, Discover, Diners, JCB, BitPay, Paypal, and Amazon". However, when I went to make the purchase I was greeted with the message "We are sorry, but American Express cards are not allowed for this order. Please choose a different form of payment." What do I do? I'd really like to play the game and I'm willing to offer my money, but I will be disappointed if my payment option is being declined despite the fact the website says it is a viable option.