Is it mandatory to have physical presence (office or resident executives) in the US to have a company incorporated?
It is very common for non-U.S. residents to own U.S. businesses.
(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.