Article 1103: Relationship between requirements for the return of unjustified enrichment and other requirements for the protection of civil rights

Since the provisions of this Code, other laws or other legal acts do not provide otherwise and do not derive from the substance of the relevant relationship, the rules provided for in this chapter shall be: Reimbursing of claims also: (1) the return of a performance under an invalid transaction; (2) the demand for property by the owner from another person ' s illegal possession; (3) one party in an obligation to d. :: Restitution of the performance of the obligation; (4) compensation for the injury, including that caused by the conduct of the enriched person in bad faith.