https://wmasg.com/pl/forum/topic/254523-11-maneras-de-contactar-con-el-servicio-de-atenci%C3%B3n-al-cliente-de-american-por-tel%C3%A9fono-correo-electr%C3%B3nico-o-chat-gu%C3%ADa-completa-de-ayuda/

https://www.airline-empires.com/index.php?/topic/36564-how-can-i-speak-directly-to-someone-at-allegiant-airlines/

https://www.airline-empires.com/index.php?/topic/36562-how-to-speak-directly-at-allegiant-airlines/

https://wmasg.com/pl/forum/topic/254522-11-maneras-de-contactar-con-el-servicio-de-atenci%C3%B3n-al-cliente-de-american-por-tel%C3%A9fono-correo-electr%C3%B3nico-o-chat-por-tel%C3%A9fono/

Ways to Reach Swiss Airline's Customer Service by Phone, Chat, and Email: An Ultimate Guide

Cómo contactar con Expedia por teléfono, correo electrónico o chat: una guía detallada

https://wmasg.com/pl/forum/topic/254521-c%C3%B3mo-contactar-con-el-servicio-de-atenci%C3%B3n-al-cliente-de-american-airlines-por-tel%C3%A9fono-sitio-web-official/

https://wmasg.com/pl/forum/topic/254520-c%C3%B3mo-contactar-con-el-servicio-de-atenci%C3%B3n-al-cliente-de-american-airlines-por-tel%C3%A9fono-paso-a-paso/

Step by Step Guide to Change Name on Frontier Ticket

https://www.airline-empires.com/index.php?/topic/36546-speak-to-a-representative-at-southwest/