Ola Cab - Ola cabs wrong calculation for the bill

The so-called "Non-Professional" company run by non-professional customer support along with buggy software to support their logics to the customer on their services. Here is my story to add to their business ethics and we can debate as long as we want without having any intention to resolve the case.
Travel date – July **th ****, Travel distance – around **km, Price charged – Rs ***/-
OLA application first showed the price of Rs ***/- for the distance the family boarded the cab while getting down at the destination the price got increased by ***% to Rs ***/- the explanation was given as high in demand. I understand the concept of high in demand and have seen vendors add **%-**% to top of the fair which application was highlighted initially while booking adding ***% additional to the earlier selected price is unacceptable, OLA did not take responsibility to let the customer know about the addition of ***% charges.
The so-called “customer support” is helpless, Manager named – Rakesh (no surname) called it's me who should have waited for a minute to change the price on the application, OLA application showed ***/- thus confirmed the cab how in earth a customer may expect after boarded the cab the application will ***% additional to earlier communicated fair. This is the way OLA is bluffing customers under the name of “high-in-demand”, will surely bring this in front of consumer court and ask for the explanation on this case.