https://www.rcindia.org/rc-general-topics/proven-7-ways-to-how-to-speak-to-talk-to-real-agent-at-american-airline-a-c/new/#new
https://forum.mygolfspy.com/topic/72343-%E2%98%85seven-ways-to-contact-how-do-i-talk-to-someone-at-united%C2%AE-a-comprehensive-gu/
https://www.rcindia.org/rc-general-topics/19-ways-to-contact-how-can-i-speak-to-someone-at-american-a-step-by-step-guide/new/#new