4.—(1) Where the application is for registration as the person who carries on a voluntary adoption agency, the fee, subject to paragraph (2), is—
(a)£1670; and
(b)if the voluntary adoption agency has, in addition to its principal office, one or more branches, an additional sum of—
(i)£1670 in respect of each branch that is not a small branch, and
(ii)£455 in respect of each small branch.
(2) If the voluntary adoption agency has a small principal office, the fee is—
(a)£455; and
(b)if the voluntary adoption agency has, in addition to its small principal office, one or more branches, an additional sum of—
(i)£1670 in respect of each branch that is not a small branch, and
(ii)£455 in respect of each small branch.