Lenovo — lenovo not give me assured warranty

Address:

Malappuram, Kerala

My lenovo p2a42 smartphone touch is broken, just a small hit on the wall, no more damages just a small single crossed line in right corner, no other cracks, and the touch is complete dead
I go to the lenovo authorised service centre and the told me your warranty is void because your phone touch has a small line, i bought the devise just 11 days and the problem is occured i think this is manufacturing defect because just a small hit cause to completely dead the display, any the told the reparing cost is about 7200,

I want to change the lcd without any cost because this sure the lenovo manufacturing problem.