Https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/the-most-effective-contact-methods-for-tech-support-and-service-including-allegiant-airlines.pdf https://ctl.gatech.edu/sites/default/files/webform/teaching_with_technology_partner/_sid_/the-most-effective-contact-methods-for-tech-support-and-service-including-allegiant-airlines.pdf