https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/07-Ways-To-Dial-Southwest-Customer-Service-Via-Phone.pdf
https://www.workingus.com/forums/topic/15-ways-to-speak-to-someone-at-delta-airlines%ef%b8%8f-step-by-step-guide/
https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/ten-ways-to-connect-how-do-i-speak-to-someone-at-allegiant-by-email-phone-number-or-chat-instant-faqs-guide.pdf
https://community.ring.com/conversations/ring-home-plan/cmo-llamar-de-eeuu-a-18883936178/68667be5b811cb4be970438e