https://seller-forum.com/t/live-talk-to-someone-at-orbitz-customer-service-usa-contact-numbers-the-detailed-guide/13626

https://seller-forum.com/t/talk-to-someone-at-ala-o-usa-contact-numbers-an-official-guide/13595

https://seller-forum.com/t/complete-list-of-alamo-support-contact-numbers-in-the-usa-the-ultimate-official-guide/13577

https://undergradresearch.gatech.edu/sites/default/files/webform/research_option_proposal_upload/_sid_/Fastest-Ways-to-Connect-Live-Agent-United-Airlines-Custumer-Support-.pdf

https://seller-forum.com/t/full-list-of-ala-o-customer-service-contact-numbers-in-the-usa-a-step-by-step-guide/13559

https://seller-forum.com/t/full-list-of-air-france-customer-service-usa-contact-numbers-a-step-by-step-guides/13602

https://undergradresearch.gatech.edu/sites/default/files/webform/research_option_proposal_upload/_sid_/complete-list-of-allegiant-airlines%C2%AE-customer-service-number-inclusive-all-guide.pdf

https://seller-forum.com/t/talk-to-someone-at-pricelin-usa-contact-numbers-an-official-guide/13539

https://b.cari.com.my/forum.php?mod=viewthread&tid=5481601&extra=

https://seller-forum.com/t/full-list-of-pricelin-customer-service-contact-numbers-in-the-usa-a-step-by-step-guide/13532