108 Ambulance — 108 service people are responded too late

I have called 108 ambulance yesterday night at 8:47 PM. But they have called me back at 9:28 PM for confirmation weather patient is still there or not. Is this way you do service to people? If the ambulance came as early as possible we must have save one life yesterday. Please don't make any false beliefs to people that we are there when service is there. False system!!!