Ola Cabs / Ani Technologies — driver refused to take the ride

I booked a ride from chandigarh railway station. The driver accepted the ride and kept me waiting for 10 min. On arrival he refused to take the ride just because it was paid via online mode and has not cancelled the ride despite verbal request. Why am i being charged in this case. He shouldn’t have accepted the ride at first place or should have enquired about the mode of payment earlier only. The car number is pb01b 3505 and driver name is romi.