14.—(1) Where a person has claimed benefit in respect of a child in respect of whom he would be entitled to benefit but for the fact that under the provisions of Schedule 2 to the Act (priority between persons entitled) some other person is entitled to benefit in respect of that child in priority to him, if that other person gives the Secretary of State notice in writing at an office of the Department that he does not wish to have priority of title to benefit in respect of that child the provisions of the said Schedule 2 shall, subject to paragraph (2), have effect with the modification that that other person does not have such priority.
(2) A notice under paragraph (1) shall—
(a)subject to sub-paragraph (b) below, have effect unless and until the said other person, subsequent to the giving of the notice, makes a further claim to benefit in respect of the said child; but
(b)not be effective as respects any week in respect of which benefit in respect of the said child is paid to the said other person or to a person on his behalf.