Uber India — uber driver took extra money

Today i booked a uber cab no. Dl1rt8721 from vasant kunj kishanghar to airpot terminal 1d the fare was 164.73 but at the middle he told he will take extra 150 for toll tax when i told him that the fare which will be shown in the app that much only the passengers need to give but he was not listening and he kept on arguing and he stop in middle said to give the money 300 plus toll tax otherwise he won't go so we gave 500 and he returnd 200 and at last when we reachd airpot the fare shown was 164.73 again i said to return back the money but he was not returning so kindly please i need my 150 rupees back please refund it asap regards