https://preussenjournal.de/forum/topic/fifteen-ways-to-call-how-to-contact-someone-at-air-canada-a-step-by-step-guide/#postid-15517
https://community.aosulife.com/t/southwest-airlines-customer-service-usa-contact-number-a-complete-process/4320
https://www.purplepass.com/events/325767-american-airlines%C2%AE%EF%B8%8F-customer-service%E2%84%A2%EF%B8%8F-usa-contact-jul-28th-2025