Uber India — unknown cancellation charges

Address:

Kolkata, West Bengal, 700055

I booked an uber ride on 8 august 2017 from dum dum park to kolkata station and the fare shown was rs. 152 but the driver took 284 as a cancellation charge but i haven't cancelled any of my rides before... This isn't correct. This is harassement for the customers. Uber services thinks that they can charge any amount... I would like to give 1 star to uber... Worst policy ever