Uber India — Charged higher amount

Address:

682011

I was charged Rs.299 for trip from hospital road to Parekkattil lane, Kaloor, Ernakulam on 19/ 12/ 2016 . For the same distance I was charged only Rs. 103 on 14/11/2016. In your bill received by me as email the distance varied in both the trips taken along same route, same destination as 5.92km on 14/11 and 15.77km 0n 19/12 .
How can the distance be different when the route taken is same to reach destination. In addition to that I was charged a surcharge of Rs.30.20. Kindly look into this error and refund.