Uber India — driver took extra money

Address:

Bangalore, Karnataka, 560100

I took a ride from electronic city to Bagmane techpark near Mahadevpura.
During journey total cost was rs.529 and i get off from the cab it changed to rs. 480.49. Since driver was supposed to ride through flyover which include rs.48 toll charge. but driver took different route to avoid tool. I got response from customer support that this is outside uber so can't return the money. I booked Cab though Uber app then how can it be outside uber ? and 2nd point, why your driver changed the route ? Please tefund the money else i will complain in consumer forum. This has happened many times with me. your are not sharing driver number also.