Malaysia Taxi

It's a raining afternoon around 3plus going 4 pm. I was waiting for my driving teacher to fetch me from city square. But i got a call from him saying that the way to town is in heavy jam. He ask me to take a taxi to perling driving learning center. I went to take a taxi at the taxi stand at city square. I told the driver that i don't understand malay and he ask me where i'm going to. A by pass Chinese man help me to tell the driver that i wanted to go. The driver say he know how to go there. I hop on to his taxi (HJ9042) and thought i can have a good ride. He drive very fast in a raining day and cut into lanes without thinking that people might not give way to him. He jam breaks suddenly when one car don't give way to him and i hurt my left arm. Then he drive to larkin which make me so puzzle why he take that way. Until he went in to a petrol station i know he wants to top-up gas for his car. He let the meter add on while i wait for him to fill his gas. when i reach my destination the fare on the meter is RM$21.00 and he wants me to make the full payment. Out of no choice as i cannot tell him that he should not charge me while i wait, i make the full payment and told this to my driving teacher. He told me that it will not cost me more then RM$20.00 from City Square to Perling driving learning center. Hope that Malaysia JPJ will come out with some thing to stop Taxi driver cheat on passanger.