Uber India — I was tremendously overcharged and had to face a very embarrassing situation

Address:

Kolkata, West Bengal, 700032

I am from kolkata. I took a trip this afternoon at around 4pm from sahidnagar, kolkata.
As i had a promo code already registerd when i was checking the fare it was saying the fare would be only rs.14/-. I had that money with me so i booked my trip. Now when i reached my destination my fare was of rs.109/- and with my promo code it came to rs.59/-.
Now i was shocked to find that my fare has suddenly changed from rs14 to rs.59. I only had rs.30/- with me... I was literally panicking on the road...
Luckily a relative of mine was passing by and i rushed to him and got my fare from her.
This is actually a very very dangerous issue and most importantly "a very embarassing situation" for me. I would immediately like to get a refund just now.