Hi guys. I think my year-old mbp pro 2015 13inch have staingate. I chatted with AppleCare advisor and they said as long as i have applecare active, i can have it changed for free. Do you think is this staingate?
(Staingate effect on upper left of display)
(Not affected display on lower right of display)

If its staingate, does anyone have any experience sending their macbooks for staingate repair??? Any experience with Machines Repair Services? I am going to send my macbook there.

Thanks!!