Lenovo — screen display damage

Address:

New Delhi, Delhi

I have bought lenovo p2 on 4th of june 2017. After just 1 month fine cracks have appeared all over the screen from nowhere. The worst part is it didn't happen due to any accident or falling off of my phone.
When i went to service centre in okhla, new delhi they demand me rs.10000 for its repair. The phone price was 15000. I mean its foolish to spend approx 70% of your phone price just for the screen. Though the touch is working i neglect to repair it.
Again after 1 month (31st sept 2017) the display blackedout. The phone is not dead. I can hear when someone calls or message me, i can hear all the notification coming but the screen got black and touch is not working.

Now today (1st aug 2017) i went to service centre at bangla sahib, shaheed bhagat singh road near cannaught place. They charged me rs. 7000 approx. They said to get it fixed after 7days.
Let's see how it goes after 7days.