Ola Cabs / Ani Technologies — cab driver additional toll charges on way to airport.

Address:

Bangalore, Karnataka

I booked a cab from bangalore shantinagar to bangalore airport. The cab showed me the amount to be paid and it was 758. While on the way to airport there is no toll payment done. It is to be done only on the return journey from airport to city. But the cab driver charged me the toll amount in between the journey or asked me to get down.
I missed my flight because of the inconvenience caused.
I want an action to be taken.