Uber — Unfairly High Fare

I am a frequent traveller and uses Uber for most of my trip from home to my office, the distance is about 5.5 km. I usually pay around Rs. 150-250 for this small trips, could not understand their calculation, therefore want to file a complaint against them for cheating their travellers by showing minimum fare and charging maximum without any specific reason. And they don't have customer care service to solve our queries and handle complaints.