Article 1105: Reimbursing the value of unjustified enrichment
1. In the event that it is not possible to return in kind the unjustified or saved property, the buyer must reimburse the victim for the actual value of the property at the time of the claim. 2. Persons who have not recovered the value of the property immediately after having learned of the lack of justification for the enrichment. that has not been justified by the temporary use of foreign property without the intention of acquiring it or by other persons ' services, must compensate the victim for what he has saved as a result of such use at a price which existed at the time when the use ended and where it took place.