https://cris.unu.edu/sites/cris.unu.edu/files/webform/30-ways-to-reach-volaris-airlines-support-by-email-phone-live-chat-via-call-email-or-chat.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/thirty-3-ways-to-reach-a-human-at-alaska-airlines-via-email-call-or-chat.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/20-ways-to-reach-alaska-airlines-customer-care-and-speak-to-a-live-agent-via-phone-chat-or-email.pdf

https://cris.unu.edu/sites/cris.unu.edu/files/webform/twenty-six-ways-to-call-and-talk-to-a-human-at-jetblue-airlines-customer-help-center.pdf

https://b.cari.com.my/forum.php?mod=viewthread&tid=5457017&extra=

https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/United-Airlines%C2%AE%EF%B8%8F-USA-Contact-Numbers-A-Step-By-Step-Guide.pdf

https://forms.business.columbia.edu/sites/forms/files-efs/webform/2023_deming_cup_nomination_and_a/_sid_/priceline-customer%C2%AE-usa-contact-numbers-complete-2025-support-guide_0.pdf

Travel

https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/35-Ways-To-Contact-To-Live-Agent-At-United%E2%84%A2%EF%B8%8F-Airlines-USA%E2%84%A2-A-Step-by-Step-Guide%5D.pdf

https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/holland-america-cruises%C2%AE-usa-contact-numbers-complete-2025-support-guide.pdf