1. Launch the NLOP software and log on as you normally would.  From the Lobby window, click the Account tab:

2. The Account information screen will open.  Click the tab 'Billing Info':

3. The Edit Membership Details window will open.  Enter the requested information into the fields; please note that all fields are required. 


NOTE: CVD is a security code.  On MasterCard, Visa and Discover cards it is a three-digit code and can be found on the back side of the card to the right of the signature panel.  On American Express cards, the code is a printed group of four digits on the front of the card towards the right side of the card.