https://www.biggerpockets.com/forums/921/topics/1254182-live-agent-talk-to-someone-at-united-usa-contact-numbers-the-detailed-guide

https://b.cari.com.my/forum.php?mod=viewthread&tid=5471148&extra=

https://www.biggerpockets.com/forums/921/topics/1254169-2025-customer-support-guide-how-to-speak-to-someone-at-westjet-airlines-usa

https://www.biggerpockets.com/forums/921/topics/1254168-help-talk-to-live-agent-at-united-airline-usa-contact-numbers

https://www.biggerpockets.com/forums/921/topics/1254114-official-full-list-of-delta-airlines-customer-contact-numbers-in-usa-the-official

https://www.biggerpockets.com/forums/88/topics/1254055-full-list-of-official-lufthansa-airlines-contact-numbers-in-the-usa-full-guide

https://www.biggerpockets.com/forums/88/topics/1254055-full-list-of-official-lufthansa-airlines-contact-numbers-in-the-usa-full-guide

https://www.biggerpockets.com/forums/921/topics/1254069-08-eight-methods-to-talk-to-live-agent-at-united-airline-a-complete-guide

https://www.biggerpockets.com/forums/921/topics/1254065-complete-list-of-official-expedi-customer-service-contact-numbers-in-the

https://www.biggerpockets.com/forums/88/topics/1254055-full-list-of-official-lufthansa-airlines-contact-numbers-in-the-usa-full-guide