If you've previously signed up for Velocity and have forgotten your number and lost your card (which has your number printed on the front) then you will probably need to call the membership centre and ask them to give you a hand: Velocity> Contact Us
Credit cards which earn frequent flyer points is a popular way to earn frequent flyer points. You can receive thousands of points on everyday spend. And, many of these cards offer generous signup bonuses! Compare to find the credit card that best suits your needs.