I requested to call the taxi to the airport in the last morning. It is normal way becauseI trust hotel, but I got about 30RNB over charged from the taxi. Suddenly the taxi driver give me over-charged, after checking the cost. Of course, I payed the additional tall gate fee. 15 RNB. It was the first time i got over-charged during my trip. I got the taxi over the twenty times in this trip.