Google India / Tez — Google pixel 6 A

I have purchased google pixel 6 A from flipkart on 2nd of October 2022. Sice then I am facing the issue of dropped calls, connectivity issues. I have raised a complain against it in December month but it is still not resolved. It's been 1.5 months and i am facing lot of issue since it's purchase. This phone is useless and it is in warranty period and i want it to get it replaced as soon as possible