OK, so i bought a one day license for a friend but got no confirmation email - this might be something to do with my email rather than the post office...anyway, all i can print out is the receipt number. Is this sufficient if we get checked? I know I saw a guy on the bank just give his name and address once so I guess the EA can check it electronically but when I was checked the other day he was just writing numbers in his pad so...will I be ok?