Flipkart — Out Of stock always with fake listing of product

Flipkart is showing Pixel 4 A always out of stock for all the places except ASSAM pin codes. If i am calling to customer care they are saying that it is seller wish to sell where ever he wants according to the policy. Every day mid night 12am and afternoon 12pm i am checking if it is available or not since launch of 16th and keep going on. If the seller wants to sell only assam location why flipkart is encouraging to list that product online. I lost my sleep and spoiled my health. I want to raise complaint on flipkart for spoiling my health.

I placed orders 3 times with assam pin code and tried to change the delivery address then also they didnt help us. they cancelled all the orders.