https://support.google.com/edu/classroom/thread/332055592?hl=en&sjid=12055483471141921912-NA

https://support.google.com/edu/classroom/thread/332246180?hl=en&sjid=4810558102201459760-NA

https://intercom.help/bhuahanbhatt-int/en/articles/10846316-how-do-i-get-a-human-at-expedia-24-7-customer-support-agents

https://www.steadyhealth.com/topics/aa-support-various-ways-to-get-assistance-from-american-airlines-customer-service

https://support.google.com/edu/classroom/thread/332245543?hl=en&sjid=4810558102201459760-NA

https://community.tp-link.com/en/business/threads/topic/771436?page=1

https://community.ring.com/conversations/smart-lighting/how-much-does-aeromexico-charge-to-change-a-flight/67db40d7999f0c2539cce0f9

https://intercom.help/cheapflightsupport/en/articles/10846292-como-hablo-con-klm-por-whatsapp

https://intercom.help/bhuahanbhatt-int/en/articles/10846284-how-do-i-get-a-human-at-expedia-1-866-829-1222

https://intercom.help/expedia-consolidtion-desk/en/articles/10846006-how-do-i-get-a-human-at-expedia