It is possible only with your airline frequent flyer programme.
Yes, your information is protected by systems within compliance. For this reason, if you are applying for a refund some months after you made your booking, we may require your bank details to reimburse you as we do not hold your information for any length of time.
It is an added three or four digit security number that is normally found on the back of your card. The American Express CVV is on the front of the card.