Uber India — I have overcharged for trip

Address:

380050

I was completed my trip yesterday. When i booked the trip then i seen estimated fair 120 which is higher compare to my previous trip (53rs only). But due to emergency i booked the trip. During the trip my driver was talking on mobile in whole route. He charged me 193 rs for the trip. I seen my fair was changed, so i checked my destination's kms of route. There was same kms & time as same as previous trip. I was booked two times same trip day before tomorrow but yesterday i was faced this problem. Why i was overcharged, and if there is lake of car or something different issues then uber application have to told me near by estimate of fair but it was almost double the shown estimated value. I paid 4 time fair for the trip and this was horrible. I need my cash back. I'm trying to contact but there is no customer care number. My mail id is [protected]@yahoo.com