(1) If a manager has defrayed any necessary or useful expenses on behalf of the principal, he may demand reimbursement thereof from the principal.
(2) When a manager has assumed on behalf of the principal an obligation which is necessary or beneficial to the latter, the provisions of Article 688(2) shall apply mutatis mutandis.
(3) If a manager manages the affairs against the principal's intention, the provisions of paragraphs (1) and (2) shall apply mutatis mutandis only to the extent of the principal's present enrichment.