Yesterday I booked a cab (for exam purpose) which ...

Yesterday I booked a cab (for exam purpose) which was scheduled for next day around 11.45am, But they didn't provided a cab on time, despite of confirmation. Only after reaching halfway to the destination, around 12.45pm the driver called me and asked where to come... Irresponsible, unprofessional and pathetic service. They should have at least call me at morning and convey the matter, then I would look for some other arrangements.. There was no response from their side even when I called at 11.30am to get driver's details...