Https://official-lufthansaair-helpguide.neocities.org/en/us/supportguide/how-to-connect-with-delta-airlines-customer-service-toll-free-phone-chat-and-email-options/ https://official-lufthansaair-helpguide.neocities.org/en/us/supportguide/how-to-connect-with-delta-airlines-customer-service-toll-free-phone-chat-and-email-options/