https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/quick-ways-to-reach-expedia-customer-support-via-phone-chat-and-email.pdf
https://www.experts-exchange.com/questions/29290592/014-Simple-Ways-to-Reach-QuickBooks-Desktop-U-S-Support-A-Practical-Contact-Manual.html
https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/quick-ways-to-connect-united-airlines-customer-service-by-phone-number-chat-and-email-option.pdf