Last week i took uber, the driver mentioned the fare on his app, it was the same in my phone. I paid only later to see uber send me receipt of the trip in my mail half of the price i paid. immediaely i launched a complain and i got a refund. I though its just a mistake.
This week same thing happened. I found the receipt mailed to me is reading different from the price in the app. I launched complain and got refund.
Be careful with uber. Always make sure the price in the app = the receipt send to you by mail. My advice