Https://official-lufthansaair-helpguide.neocities.org/en/us/customer-guide/15-simple-steps-to-contact-delta-airlines-customer-support-by-phone-and-email/ https://official-lufthansaair-helpguide.neocities.org/en/us/customer-guide/15-simple-steps-to-contact-delta-airlines-customer-support-by-phone-and-email/