Mahindra And Mahindra — Annoying service

I gave my car xuv 300 to resolve a simple Mobil leakege defect for which they are taking around 9 days to resolve the issue and still going on deferring the case.
I gave my car to body shop before that and they transferred it to the service department in 13 days, dont know what they were doing with the car.
And still today when I talk to service department, they say sometimes that they have lack of manpower, or there is some other fault, sometimes they say that the car is under trial, or will inform you tomorrow when it will get cured and so on.

They are just making excuses to make the car and keep on deferring the case as if the customer has bought the car to leave it with the service centers.

Very annoying service.

Does it take 22 days for such purpose??
Is this Mahindra’s service?