Uber India — Refund my extra charges on my last uber ride

Website:

uberindia.com

Dear Sir/Madam,
This is to inform you that today, when I was booking an Uber cab, the fare shown to me for the UberGo ride was Rs.137 but after the ride was complete Rs.320 was charged from me.So, I had to pay that amount.
I have been your customer since I have faith on Uber. So, I kindly request you to refund the extra fare that was charged from me, that is, Rs.183.
Warm Regards!