Https://www.pff.de/thread/2831717-quick-complete-list-of-united-airlines-customer-service-24-7-live-person-support/https://www.pff.de/thread/2831717-quick-complete-list-of-united-airlines-customer-service-24-7-live-person-support/https://www.pff.de/thread/2831717-quick-complete-list-of-united-airlines-customer-service-24-7-live-person-support/https://www.pff.de/thread/2831717-quick-co... https://www.pff.de/thread/2831717-quick-complete-list-of-united-airlines-customer-service-24-7-live-person-support/