I have been trying to purchase the "Humble Indie Bundle" for the past couple hours with an American Express Gift Card. However, when I try to purchase it (through PayPal) an error reading "your billing address is invalid" shows up and I am unable to make my purchase. I have called the American Express Gift Card customer support and registered my card with the appropriate credentials, and tried again to no avail. Another issue is whenever I try to make my purchase again, I get charged the $1 verification fee. My card is low amount and every time this happens I have had to call American Express to have them cancel it (I've heard that it takes about a week for PayPal to refund). The representatives there assure me that it is not a fault on their end and advised me to ask PayPal. So here I am, asking the community if they have experienced similar problems and if they know a fix. Thank you for your time!
