Apple India — iphone 7 colour peeling

Address: Rangareddy, Andhra Pradesh, 500072

Respected sir, i have purchased iphone 7 before 9 months for promising pay of 60k. Still am paying the emi but the colour of mobile is peeling from sides as it's black coloured mobile and it's not at all looking good and this kind of product from iphone have never expected and visited there customer service many times but they are not listening my problem. And they telling cosmetic defect related won't covers under warrant, when have purchased this i saw the outer beauty only not opened the mobile to check the hardware how it look a like.
Sir am not only the person have this problem many facing the same issue and they have commented in few sites when i googled for this problem.