If you don't sell tickets online, pay for tickets on the app. I had a very bad experience at the ticket sales area. I went to all the places I bought tickets online, when I got there I just had to scan the code very quickly. I think it's the same at Langbiang. When I bought tickets, the staff said they didn't accept online tickets and made me wait. Then they mocked me. Thousands of new customers saw that it was their first time buying online, but they didn't have the good will to check for me. They just sat there laughing and mocking me. I got mad and cursed at them. They were just employees but they thought it was the director. I hope the HR department will retrain the way employees work and their attitudes. If they don't, just pay for the online tickets.