Ola Cabs / Ani Technologies — ola charged me 3 times the estimate

Address:

Hyderabad, Andhra Pradesh, 500086

Crn [protected]
Estimate at peak hour: 407/-
Final bill deducted: 1207/-
Normal time estimate: 367/-
Ola support team claims that estimates and actuals vary. By three times??
I understand the deviance due to change in route or destination, neither of which happened. Still have been charged more than 700/- in dynamic pricing.
In return ola folks are asking me if i have taken any snapshots of the booking estimate. Why would we even doubt that they’d end up charging 3 times the estimate.
When i raised this issue on twitter, they’ve refunded 186/-. No idea on what calculation.
This is ridiculous service from ola. Blood suckers!!