Asus India — my device get dead after companies firmware update

My asus zenfone max pro m2 device (S. N. [protected]) get stuck on asus logo after downloading asus's latest fota update (.73) and it's not restarting.
I go through asus service center they're saying it's hardware problem and it will cost more than 8000 rupees.
I call asus's customer care and they're saying your mobile is out of warranty so you have to pay.
But on asus official website one customer share that he got replacement for the same problem after 100 days i'll attach photo of the same
This problem occurred due to asus's official fota update. Asus have to pay for the same.
I want justice. Please concern my query