Ola Cabs — Drivernot showing up to pick me

Address:

Mumbai City, Maharashtra, 400020

"rbaban ([protected]) is on the way to your location in a white swift dzire mh06bp0093. Was supposed to come but did not.
When the driver did not show up why should i pay? He called to say sorry and sent another driver who came 40 mins later. How would i have got the flight?
I got this below message!!!
" 75 cancellation fee will be charged on your next ride.in case you are charged incorrectly, you can claim a refund from the support section on the app."
I am not liable to pay anything for your inefficency.