Ola Cabs — 100 extra charged

Address:

New Delhi, Delhi, 110006

Hi, Olacabs Invoice for CRN[protected] Total Distance 34.81 KM Ride Date 27.12.2015 Ride Time - 12:35 Total Invoice Charges Rs. 488 and Taxi person charged Rs. 588, i received mail late on my handset hence i paid what they said, when i got mail and call to this person he said i will return Rs. 100 to you and not received yet, already remind 4-5 times to him, kindly do the needful and what i need to do ?