I'd resubmit. My husband made an error on his original submission (did his DOB with American month/day order instead of European style. He did manage to speak to someone via their telephone number, who told him to just use the approved one with the incorrect date. He decided he didn't want to risk having it flagged at the airport, so he resubmitted with the correct date and got approved a second time with no issue. He was not charged for insurance again.