Maruti Suzuki India — car suspension issue

Address:

Premraj residency, B wing, P-4 , Anand nager, Old sangavi, Pune, Maharashtra, 411027

I purchased ignis car 22nd feb 2018 and found car suspension is very hard it is not soft. When we drive it on white strip dashboard vibrates very badly and thad sounds comes very loudly. When 2 passenger sits to back row suspension almost goes down to touch tire leavel and back passenger feels it very bouncy. We are really very unhappy with it. I have already shown my car to maruti station but they are saying there is no issue. I have lots of ignis members who are facing same problem.. Please help