...unable to physically come to the U.S., you can find other tips, resources and suggestions in our research section ‘U.S. Bank Account‘. To my understanding, you are not required to...
(a) You made a typo in the card number, CCV code, expiration date, name or address;
(b) Your card balance is too low;
(c) Issuing bank has declined this transaction for some other reason related to your account.