I have faced same condition.. after screen replacement at free of cost...2nd time green line appeared... If you really want to change the display, I will suggest you to Buy OLED display from RDG store ( RS 7500).. I have been using it and quality is ...

Try for Free of Cost replacement..

If your mobile without any damages...you will probably get FOC

I am also trying to know that my friend

But some users report that they have get free screen replacement