Many times of late nwa.com has refused some of my credit cards that are stored in the My Info. Usually you just have to enter the CCV number when using a stored card, and when I do this, it tells me the CCV number is incorrect, even when I try using the card as if it were a new card not in my account. Very, very annoying. Sometimes I log out, log back in, attempt the purchase again and everything goes like clockwork.