To place a renewal order for a particular domain/subscription please go to your account at https://cp.blacknight.com. (Applies to this system only). Please check that there is not currently a renewal order generated for your subscription before attempting to generate one. This can done by going to Billing >> Open and Pending. You will not be able to generate another renewal order if one exists for that subscription already. For information on paying an existing renewal order please see here.
Go to Account >> Registered Domains >> Renew Domain >> Select the domain name and click Next >> Select the period and click Next >> Select the payment method from the drop down menu, review your order and click Place Order.
Go to Account >> Subscriptions >> Click on the subscription name >> Renew Subscription >> Select the period and click Next >> Select the payment method from the drop down menu, review your order and click Place Order.
Depending on the type of domain or subscription you may not be able to renew it for the desired period or until closer to the renewal date. These orders are checked daily and if there are any problems, you will be notified.