13Resumption
(1)Subject to subsection (2), a person who has ceased to be a British citizen as a result of a declaration of renunciation shall be entitled, on an application for his registration as a British citizen, to be registered as such a citizen if—
(a)he is of full capacity ; and
(b)his renunciation of British citizenship was necessary to enable him to retain or acquire some other citizenship or nationality.
(2)A person shall not be entitled to registration under subsection (1) on more than one occasion.
(3)If a person of full capacity who has ceased to be a British citizen as a result of a declaration of renunciation (for whatever reason made) makes an application for his registration as such a citizen, the Secretary of State may, if he thinks fit, cause him to be registered as such a citizen.