Problem signing up for hosting

Hi, I got this problem while signing up for hosting:

“There was an error while charging your credit card. The processor returned: Declined Please double-check the card number, expiration date, and your billing address. (err code 12)”

I don’t have an issue with my card so why the problem? Also, shouldn’t the signup form ask me for the name on my Card? There was not input field for the name.