Service of any document on a prisoner for the purpose of the Ordinance shall be duly effected if delivered to-
(a) an address at which the prisoner is required to reside pursuant to the terms of a supervision order; or where there is no such requirement,
(b) an address which the prisoner has notified to the Commissioner as an address for service; or where no such address has been notified,
(c) the last known address of the prisoner.