https://discourse.jabref.org/t/discover-the-ultimate-collection-of-united-airlines-assistance-numbers-direct-access-to-24-7-help-for-any-issue-you-may-face-while-traveling/6041
https://forum.duplicacy.com/t/discover-the-ultimate-collection-of-united-airlines-assistance-numbers-direct-access-to-24-7-help-for-any-issue-you-may-face-while-traveling/10345
https://forum.duplicacy.com/t/unlock-24-7-support-with-this-exhaustive-2025-guide-to-united-airlines-help-lines-real-numbers-real-solutions-real-fast/10347
https://discourse.jabref.org/t/unlock-24-7-support-with-this-exhaustive-2025-guide-to-united-airlines-help-lines-real-numbers-real-solutions-real-fast/6044
https://discourse.jabref.org/t/master-access-list-of-united-airlines-contact-lines-2025-hotline-compilation-for-reservations-complaints-lost-items-urgent-travel-help/6045