https://forum.ls-chronicles.net/index.php?/topic/366-complete-list-of-official-united-airlines%E2%84%A2%EF%B8%8Fcustomer-service-numbers-in-the-usa-the-stepbystep-detailed-guide/ https://forum.ls-chronicles.net/index.php?/topic/373-complete-list-of-delta%C2%AE%EF%B8%8Fairlines%E2%84%A2%EF%B8%8F-customer-service-number%C2%AE%EF%B8%8F-contact-number/...