If you’re unable to purchase data plans through your current payment method, here are some possible reasons why:
- Your card has expired
- Your payment method has insufficient funds
- Your card number, expiration date, or billing address are invalid
- Your payment method exceeded the maximum amount allowed for a single charge OR the number of charges allowed within a period of time
- Your card is not authorized to make online transactions
Try again with the same card after a while, or use a different payment method. Otherwise, you may wish to contact your payment provider directly for assistance.