I was unsure of how to go up to business class, but I wanted to. When I visited the Ethiopian Airlines Denpasar Office, they gave me a thorough explanation of the upgrade procedure. They gave me the seat map and explained the prices and availability. My upgrading went without a hitch. The flight was enjoyable, and the business class was great. It was all made possible by the office workers. Go to this office if you want to take a higher travel class. They are helpful with updates and honest. visit us: https://www.airlineofficesfind.com/ethiopian-airlines/ethiopian-airlines-denpasar-office-in-indonesia/