https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/seven-quick-ways-to-reach-expedia-customer-service-by-phone-chat-and-email-options.pdf
https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/complete-guide-19-ways-to-speak-help-from-a-southwest-airlines-live-agent-customer-support.pdf
https://www.experts-exchange.com/questions/29290584/17-Quick-Ways-to-Contact-QuickBooks-Desktop-Support-and-Talk-to-a-Live-Person.html
https://www.experts-exchange.com/questions/29290704/06-Direct-Ways-to-Call-QuickBooks-Payroll-U-S-Support-A-Step-by-Step-Assistance-Guide.html