If pessengers are failed to make changes in the given time then they have to bear Easyjet Flight Change Fee. This airline provides the facility of making changes up to 2 hours before departure. If you making after the free change window then you have to pay 70USD to 100USD.

https://airlinespolicy.com/flight-change-policy/easyjet-flight-change-policy/

Telefono Scandinavian España
Are you hunting for an airline that offers incredible services in the air? Don’t look further and purchase Scandinavian Flights Tickets for your journey. It is an idyllic choice because it believes in facilitating customers with nothing but the best. Contact the Telefono Scandinavian España desk to confirm your reservation, and to fly conveniently.
https://www.iairtickets.com/espanol/scandinavian-airlines-telefono/