Erratum: Yes I was cheated. Really had bad experience. VND 15 000 was the starting fare. Meter showed 990,000 when it reached a street to the hotel. Driver wanted US$60 and we did not have much money with us. He did not want to move the taxi to our hotel for us to get the money ( and for us to inform hotel pple). He locked us in his taxi. In the end, we had to take out cash hidden in our pouches).
To all travellers, look out for taxis that have tinted windows. In the night, pple along the streets cannot look in to see what's happening inside the taxi.