Domains can be renewed by the owner of a domain (the individual who registered the domain), using the regular renewal procedure. Notifications will be sent by email.
In case if there are roles assigned to this domain, the 'Admin' and/or the 'Billing' role are also enabled to renew a domain.
Please find out more about 'roles' here .
In case no authorized person is available, the 'Simple Renewal' procedure can also be used. This allows anybody to renew a domain, but without being able to change any other aspect of the domain.