Can I return or exchange purchased tickets?

Purchased tickets cannot be returned or exchanged. Due to the reasons laid down in Section 1837, Paragraph j) of the Civil Code, a ticket purchase may not be cancelled using the procedure laid down in Section 1829 of the Civil Code (discretionary cancellation within 14 days after purchase) because a ticket purchase constitutes a leisure agreement, where supply (the purchase of a ticket to attend an Event) is delivered at a predetermined time.