https://forum.skylords.eu/index.php?/topic/15443-15-ways-to-contact-southwest-airlines-usa-contact-numbers/
https://forum.skylords.eu/index.php?/topic/15045-how-can-i-talk-to-expedia%C2%AE-customer-service-a-step-by-step-guide-to-getting-help-fast/
https://forum.skylords.eu/index.php?/topic/15162-18-ways-to-communicate-american-airlines%C2%AE%EF%B8%8F-usa-contact-numbers-complete-2025/
https://regions-and-cities.europa.eu/sites/default/files/webform/multimedia_center/_sid_/Delta-TelefonoComollamaraDeltadesdeMexico.pdf
https://forum.skylords.eu/index.php?/topic/15384-~can%E2%80%99t-get-through-to-expedia-try-these-32-contact-options/