Sleeping bus Vietnam

I am in Vietnam. I bought the ticket of open bus from Ha Noi to Ho Chi Minh. This happened in Nha Trang. We transferred here. Our tickets didn t book a seat number for us. It s just a recipe. The girls just wanted side seats because they felt uncomfortable on the last bus. And tried their best to explain. But the stuff of the bus company, which is called Queen Cafe Open, threatened them and anyone doesn t want to obey his orders. He threw the girl s bag out of the door twice. And asked them take off the bus, even grabbed the girl. The worst is another staff on the bus seems drunk and had the something like cannabis. We are secondclass people here. And I won t visit here anymore. During the whole trip, I didn t have any sense of safty.