The Registrar is not to register a change of name of a person on application made under this Act if the Registrar is aware that-
(a) a change of the person’s name has been registered (whether in this State or in another State) within the period of 12 months immediately preceding the date of the application, or
(b) 3 or more changes of the person’s name have been registered (whether in this State or in another State).