Chosen Solution

My mum accidentally told the phone repair people that my phone was a 6s plus and so they replaced it with a 6s plus screen. I only noticed when I pressed something for a long time, it did the pop up thing meant for 3D Touch. Everything’s working but I’m wondering if I should get it replaced to a proper 6 Plus screen. Thanks!

I think that your iphone is in fact a iphone 6S Plus and not what you think a iphone 6 Plus, i think that because a 6S screen will not work on a 6 and the people in the repair shop will easily see if that it is a 6S Plus or a normal 6 Plus.