Https://thwarts.cee.illinois.edu/files/2025/06/twelve-proven-ways-to-call-to-live-person-at-united-airlines-customer-service-via-phone-email-or-chat-explained-guide.pdf https://thwarts.cee.illinois.edu/files/2025/06/twelve-proven-ways-to-call-to-live-person-at-united-airlines-customer-service-via-phone-email-or-chat-explained-guide.pdf