27. In its award, the council of arbitration may uphold or reduce the amount of the account in dispute; it may also determine, if appropriate, the refund to which a party may be entitled. To that end, it may in particular take into account the quality of the services rendered.
The council of arbitration may decide the arbitration expenses, namely the expenses incurred by the Order for the arbitration. The total amount of the expenses must not, however, exceed 15% of the amount in dispute.
When the account in dispute is maintained in whole or in part or when a refund is awarded, the council of arbitration may also add interest and an indemnity as provided in articles 1618 and 1619 of the Civil Code, calculated from the date of the application for conciliation.