https://unitedairlinehelpdesk.zohodesk.com/portal/en/kb/articles/ua-official-will-i-get-a-refund-if-i-cancel-my-united-flight

https://patch.com/california/losaltos/calendar/event/20250529/99dcb7dc-b9d1-4bcc-bfb5-0b2403ea9ace/cmo-puedo-hablar-con-alguien-de-copa-airlines?edited=1748415182002

https://unitedairlinehelpdesk.zohodesk.com/portal/en/kb/articles/ua-official-will-i-get-a-refund-if-i-cancel-my-united-flight

https://www.studocu.com/en-us/messages/question/12998720/18667980691-brussels-airlines-richmond-office

https://who-called.us/Forum/1936/20-Ways-to-Connect-with-ITA-Airways-A-Comprehensive-Customer-Support-Guide

https://patch.com/california/mountainview/calendar/event/20250529/30aadbdb-762f-48f6-aaac-92c091491399/cmo-puedo-hablar-con-una-persona-en-copa?edited=1748412132556

https://www.utgop.org/toexpedia

https://who-called.us/Forum/2058/Easy-Contact-Options-for-Expedia-Support---Chat-Email--Phone