https://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/%28DELTA%C2%AE-telefono-espa%C3%B1ol%29-%C2%BFC%C3%B3mo-puedo-hablar-con-un-representante-de-delta-en-espanol.pdf
https://forum.skiffhq.com/t/full-list-of-official-pric-line-customer-contact-numbers-in-the-usa-the-ultimate-detailed-guide/3504
https://www.renderhub.com/forum/11155/full-list-of-united-customer-contact-numbers-in-usa-the-detail-official
https://forum.swib.org/t/travelocit-contact-support-us-official-number-comprehensive-2025-manual-guide/1043
https://forum.swib.org/t/expedi-contact-support-usa-official-number-comprehensive-2025-manual-guide/1044
https://forum.swib.org/t/pricelin-contact-support-usa-official-number-comprehensive-2025-manual-guide/1047
https://forum.swib.org/t/full-list-of-united-airlines-customers-care-contact-numbers-in-usa-comprehensive-2025-manual/1048
https://forum.swib.org/t/full-list-of-delta-airlines-customers-care-contact-numbers-in-usa-comprehensive-2025-manual/1049
https://forum.swib.org/t/full-list-of-american-airlines-customers-care-contact-numbers-in-usa-comprehensive-2025-manual/1050