https://efi.int/sites/default/files/webform/sab_membership_application_2022/_sid_/United-Airlines-Customertm-Service-USA-Contact-Numbers-Guide.pdf https://efi.int/sites/default/files/webform/sab_membership_application_2022/_sid_/Lufthansa-Airlines-Customer-Servicetm-USA-Contact-Numbers-Guide.pdf https://efi.int/sites/default/files/webform/sab_membership_application_2022/_sid_/KLM-Airlines-Customer-Servicetm-USA-Contact-Numbers-Guide.pdf https://efi.int/sites/default/files/webform/sab_membership_application_2022/_sid_/Air-Canada-Customer-Servicetm-USA-Contact-Numbers-Guide.pdf https://efi.int/sites/default/files/webform/sab_membership_application_2022/_sid_/British-Airways-Customer-Servicetm-USA-Contact-Numbers-Guide.pdf https://efi.int/sites/default/files/webform/sab_membership_application_2022/_sid_/Breeze-Airways-Customer-Servicetm-USA-Contact-Numbers-Guide.pdf