HP India — Technician changed motherboard

We are suffering a lot with hp i have purchased hp 11 gens sn: CND2104R7W
on 17 Nov 2022, after next day I have faced a lot of issues but hp denying the issue. Changed motherboard, how can we accept it. It's a new laptop we didn't even used it. How can we suffer since purchased. The laptop cost is 60000. It is unfair please hp help me replace with new product with same laptop. I can't accept it. The laptop is not with i deny taking it. Please help me replace or else I will proceed legally. I have suffered mentally a with you.