When I bought plane tickets, the website clearly indicated that tickets can be returned or changed 14 days before the flight. I bought a ticket, but when it turned out that my friend should fly instead of me, the company refused to change the passenger data. Indeed – on the ticket in small print it was written that the ticket is not exchangeable and non-refundable. That is, the information on the site is different from the information on the ticket – and this is a critical mistake, is not it?