Payment of costs
12. (1) Having determined the costs payable to a representative in accordance with these Rules, the Commission shall notify the representative of the costs payable and authorise payment accordingly.
(2) Where the costs payable under paragraph (1) are varied as a result of any review, redetermination or appeal made or brought pursuant to these Rules, then –
(a) where the costs are increased, the Commission 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 rule 14(14) or 15(8), the Commission shall authorise such payment.

Rule 12 in operation at 4.4.2005, see rule 1