27. In their award, the arbitrators may distribute among the parties the expenses incurred by the Order for the arbitration. The expenses so distributed may not exceed 10% of the amount to which the arbitration pertains.
Where the account in dispute is upheld in whole or in part, or where a reimbursement is granted, the arbitrators may add thereto interest and an indemnity determined pursuant to articles 1618 and 1619 of the Civil Code from the date of the application for conciliation.