Ola Cabs — Booking cabs but it is cancelled by ola

Website:

ola.in

I was booking 2 ola cabs mini in 13/08/2016 and next ride on that day was free but it is cancelled by driver . I have to reach new Delhi railway station for catched poorva train to going my home town. So, I have to booked extra 1 cab for going there. But, I was late for station .
And so so thank of that train was late, and l catched the train by facing many
problems...
Please do something for that behaviour of ola...