https://preussenjournal.de/forum/topic/fifteen-ways-to-call-how-to-contact-someone-at-air-canada-a-step-by-step-guide/#postid-15517
https://aact.org/sites/default/files/webform/post_a_job/_sid_/trusted-8-ways-to-talk-to-live-agent-at-lufthansa-r-airline-r-a-complete-walkthrough.pdf
https://aact.org/sites/default/files/webform/post_a_job/_sid_/trusted-8-ways-to-talk-to-live-agent-at-southwest-r-airline-r-a-complete-walkthrough.pdf
https://forum.melhoresbrokers.com.br/t/full-list-of-american-airlines-customer-contact-numbers-in-usa-2025-guide/6871