Question

You are a lawyer representing a client who is involved in a contract dispute. The contract stipulates that the payment must be made within a "reasonable time" after the delivery of the goods. The client claims that the payment was not made within a reasonable time, while the other party argues that they still have a legal period to comply. Assess the legal periods for the payment under Philippine laws, particularly under Article 13 of the Civil Code, as amended by Book I, Chapter 8, Section 31 of the Administrative Code of 1987 (E.O. No. 292). Discuss the effect and application of these legal periods in resolving the dispute.