Samsung — New phone defective not being attended or replaced

Bought a new Samsung M34 5g from amazon on 20th Oct. Battery draiming in 5-6 hours.

Asked Amazon for replacement. Surprise surprise, they dont replace any more..samsnung does.

Went to samsung service center at Khajuri Varanasi after calling them. They did nothing, gave no reciept or did any repairs..On asking for complaint book, said they dont have it.

So net net Samsung and Amazon both avoided their respomsibility in selling a defective product. Will Samsung take responsibility and replace or continue to just make and dump defectives in India?