Samsung — Defected phone delivered and not replacing it

I had purchased Samsung Galaxy S22 ultra phone from Samsung Shop app. I had placed order on 22 February 2022 and i got the delivery on 7th March 2022 after 2 days o[censored]se i found that the phone has defects that are battery draining very quickly and auto touch happening, thus i approached samsung service center and i followed all processes but still they are saying phone is like that only its normal. I have video proofs of defect found but they are not ready to accept it. It is under 14 day policy of piece to piece replacement policy when i raised query. I am not getting any response from them. Please help me our what can i do now.

Now they are saying there is no defect even i showed them video proof of defect.