https://hopzone.eu/forums/topic/277310-the-ways-to-contact-expedia%E2%84%A2%EF%B8%8F-a-37-point-support-guide/
https://thetolkien.forum/threads/30-ways-to-contact-how-can-i-talk-to-someone-at-united-airlines-a-step-by-step-guide.33129/