Nexa — Fake promises

This is to share few of my grievances. From day one of my car purchase, I am not satisfied with few of fake promises. I was informed some accessories were free but later charged while car delivery. Again I was promised, if required, any accessories can be purchased from showroom but now again this turned out to be false. When I went to buy car body cover, they informed me billing is in one service station and delivery of the cover in the showroom. This is really ridiculous. Literally I should travel around 12 km for billing and less than 1 km (from my home) for delivery.
Sales man/Sales manager who attended me during car purchased is now resigned. The person who attended me now does not accept the commitments made by the other.
I would like to know if "NEXA" do not have any hard and fast rules or does it keeps on changing from time to time. This really hurts.

Delivery of my car after my first service was delayed by 4 hours without prior information.
Second service feedback was not up to my satisfaction.

They also promised the so-called royal service but currently not.
I would like to know why customers are not treated properly. We had the intention of buying one more product from "NEXA" but this service has now changed our mind.
I would like to know why there is no transparency why selling the product? I referred many persons to this company but nowadays I am scared to do because of this bad experience.
Why there is no easy access for customers?
While purchasing the car WE are treated like newly wed couples but nowadays like beggars.