charged for cancellation of trip

I requested a cab and I waited for more than the estimated time, the application howed that the cab arrived but driver didn't call me, when I called him he said he was in another street and when I told him where to was he gave me bad attitude and told me I should have put house number of which I was in central town I didn't know of house numbers I was waiting on st George's street by spar, I ran out of airtime and he just cancelled the trip without even calling me back and ideas still trying to buy airtime to call him back. I don't understand why am I being charged cancellation fee because I didn't cancel the trip and I was still eager to use the cab, I am not happy with the service