“1-866-738-0706 Lufthansa Airlines Hanoi Office
Lufthansa does not have a dedicated physical office in Hanoi, but the airline's Vietnam office is located in Ho Chi Minh City, where you can contact them by phone at +1-866-738-0706 or by email at lufthansa.vn@dlh.de. For any issues, it is best to contact their customer service via phone or email.”