Ola Cab - accident with ola cabs

we were driving to work at **am on the western express highway and saw card slowing down in front of us hence lowered our speed too. we were the *th car in line, to have slowed down with safe distance from the car ahead. However, the ola cab behind us was not paying attention while driving at a very high speed and did not brake in time, hence ramming into our car. the bumper of my honda iv-tech has come off and there is a huge dent under the number plate. because of the impact the driver and person in the passenger seat were both thrown on the dash board, despite the seat belts. When confronted the ola cab driver refused to accept his mistake and said he had no money. after much probing he admitted his mistake and parted with details. the insurance of his car was expiring the next day. We have written to Ola to report this, have not received a response yet.