Car is good but service is poor.

I have a toyota etios liva . When i was going on highway, driving speed was on 130 km/hr to 140 km/hr, suddenly front tyre come into damage road and wheel get punchered due to safty feathers i controlled it very well but it strike from left side rock from front side It got damaged from front side so i give it on service center at my native place for repairing under insurance. They passes insurance claim but its damage parts are not available at service center from last 25 days.In starting they don't give me delivery date. They says as parts will arrange will call you. Days passes now Service centre employee says that parts will come after one month till we have to wait for it. Car is good, its perfomence is too good but its service is so poor. So please think about it that its perfomance is good but in service end its goes down.