Interim disbursements and final determination of costs
6. (1) On a final determination of costs, rules 7(2) and (3)(e) and 9 shall apply notwithstanding that a payment has been made under rule 5.
(2) Where the amount found to be due under rule 9 in respect of a disbursement is less than the amount paid under rule 5 (“the interim disbursement”), the Commission shall deduct the difference from the sum otherwise payable to the solicitor on the determination of costs, and where the amount due under rule 9 exceeds the interim disbursement, the Commission shall add the difference to the amount otherwise payable to the solicitor.

Rule 6 in operation at 4.4.2005, see rule 1