Ola Cabs / Ani Technologies — ola rental car fares - regarding

Address:

Hyderabad, Telangana, 500032

I am ayanoly sravan. I had taken a ride in ola on 13/11/2018 at 6:00am. I booked for rental on 2 hours and 10km category. I have applied a coupon also. But i reached the destination in 51 min and just covering 32km. But in ola invoice after rive it charged extra rs.104 for 10 km. My trip number is :crn[protected] i need quick explanation for this.
Hope to hear from you soon...