2146. The mandatary may not use for his benefit any information he obtains or any property he is charged with receiving or administering in carrying out his mandate, unless the mandator consents to such use or such use arises from the law or the mandate.
If the mandatary uses the property or information without authorization, he shall, in addition to the compensation for which he may be liable for injury suffered, compensate the mandator by paying, in the case of information, an amount equal to the enrichment he obtains or, in the case of property, an appropriate rent or the interest on the sums used.