Please follow the steps to extend the service for Magic Jack..
1. Visit the Magic Jack account management site, by going to http://my.magicjack.com .
2. Login using your telephone number and the password XXXXX created during your Magic Jack registration. If you do not remember the password, click "Remind me by email."
3. Click on "Customer Care," and then "Extend Your License."
4. Choose your renewal term. You can renew your license for one year, three years or five years.
5. Enter your credit card information, including your billing address and zip code, to complete your renewal.
Also check this LINK
Please don't forget to hit ACCEPT so I can get credit for my work. Positive Feedback and Bonus will be highly appreciated Thank you Bineesh