Hyundai Motor India — navigation chip not delivered with car purchased on 22.03.2018 till 22.09.2018

Address:

Ratlam, Madhya Pradesh, 457001

I purchased hyundai i-20 elite model car on 22.03.2018 with navigation system
But the navigation chip not delieverd by showroom manager on 22.03.2018
He replied me that your chip will be delievered with in some time
& now months completed but the navigation chip not given by them
More money paid by me only foir navigation
Plz solved my problem.