Please follow these steps to renew a domain from the Client Area:
1) Login to your client area at https://my.freevirtualservers.com/clientarea.php
2) View your domain names available for renewal by clicking Domains -> Renew Domains from the top menu bar:
3) Tick the box on the left hand side of the domain you wish to renew:
4) Click Order Now and you'll be taken to the payment page. Once payment is made, the domains will be automatically renewed immediately.