11.—(1) Having determined the remuneration payable to a representative in accordance with this Order, the Department shall notify the representative of the costs payable and, subject to paragraph (2), authorise payment accordingly.
(2) For proceedings falling within Article 5(2)(b) or (c), the sum authorised for payment by the Department shall be the full amount allowed on taxation of the costs on account of disbursements and ninety-five per cent of the amount so allowed in respect of the representative's remuneration.
(3) Where the costs payable under paragraphs (1) or (2) are varied as a result of any review, redetermination or appeal made or brought pursuant to this Order or the relevant court rules, as applicable, then—
(a)where the costs are increased, the Department shall authorise payment of the increase;
(b)where the costs are decreased, the representative shall repay the amount of such decrease; and
(c)where the payment of any costs to the representative is ordered under Article 14(15) or 15(9), the Department shall authorise such payment.