Https://www.ucmerced.edu/sites/g/files/ufvvjh1421/f/webform/full-list-of-lufthansa-airlines-customer-service-number-an-complete-guide.pdf https://www.ucmerced.edu/sites/g/files/ufvvjh1421/f/webform/full-list-of-lufthansa-airlines-customer-service-number-an-complete-guide.pdf