Ola Cabs / Ani Technologies — driver changed too much amount

Our drive with ola only 30 km and you changed 1200 rs, it's too much if you want to confirm with driver then talk to him.
Driver contact details-mahesh ([protected])
Why we need to be changed as a rental when you didn't provide us rental service.
Why driver isn't inform to us about our booking, without booking why he dropped us our destination and charged as rental, and he think we booked for one way. But ride is already end before strat journey only 0 km.
We paid through ola money 461 rs and 1200 additional cash to driver.
It's totally driver falut so please take a strong action against him. He don't know when ride start and when end, and what is ola money.
Our saturday ride only 30 km and paid 1200 rs, it's too much amount.
Please as soon as possible do necessary.