12.—(1) Where a representative is dissatisfied with the calculation of the remuneration payable under Schedules 2 to 5, as applicable, the representative may request the Department to give reasons in writing for its decision and the Department shall comply with any such request.
(2) Subject to Article 17, the request shall be made—
(a)within 21 days of receiving notification of the costs payable under Article 11; and
(b)in such form and manner as the Department may direct.
(3) Clerical mistakes or errors arising from any accidental slip or omission, in the calculation of the remuneration under Article 9 or the determination of disbursements under Article 10 may be corrected by the Department without a redetermination under Article 13 or an appeal under Article 14, where applicable.