https://www.data-medics.com/forum/threads/1-888-217-5921-how-to-reach-united-airlines-support-in-chicago-complete-guide-to-contacting-customer-service.55880/
https://www.data-medics.com/forum/threads/1-888-217-5921-how-to-reach-united-airlines-support-in-chicago-complete-guide-to-contacting-customer-service.55880/