https://intercom.help/all-airlines-support/en/articles/10970653-follow-some-guide-how-do-i-speak-at-someone-on-singapore-airlines
https://intercom.help/expedia-customer-executive-help-center/en/articles/10971277-what-is-the-best-way-to-complain-to-expedia-call-us-intercom
https://intercom.help/prestige-travel/en/articles/10970982-how-do-i-get-a-human-at-expedia-quicktravelhelp
https://intercom.help/all-airlines-support/en/articles/10970654-hot-airline-guide-how-do-i-speak-at-someone-on-singapore-airlines
