https://www.italki.com/en/post/0yDa5IpoXGMJSZfilgI97B

https://www.pixiv.net/novel/show.php?id=24489096

https://forums.serebii.net/threads/how-can-i-file-a-complaint-against-expedia.779819/

https://support.google.com/nonprofits/thread/337523113?hl=en&sjid=15878406387899032377-NC

https://lpefuho.document360.io/docs/ways-to-call-american-airlines-customer-service-by-phone-1

https://forums.serebii.net/threads/what-is-the-best-day-of-the-week-to-book-allegiant-flights-book_now.779842/

https://forums.serebii.net/threads/does-allow-free-changes.779837/

https://www.goodreads.com/quotes/12717924-is-expedia-actually-fully-refundable-expedia-allows-cancellations-with-full

https://tinyurl.com/gfcsgxh68798

https://community.whattoexpect.com/forums/los-angeles/topic/contacting-delta-airlines-full-guide-to-phone-email-amp-chat-support-169517761.html