Civil liability confirmed: creditor must prove title and restitution requirements for letter of credit payment.

The Tribunal da Relação de Lisboa confirmed the lower court's decision regarding the return of a letter of credit. The creditor argued for the automatic return of funds after payment, while the debtor contested the lack of formal title requirements. The court ruled that the right to demand restitution is not automatic and strictly requires proof of a valid title and fulfillment of specific legal conditions.