Quoted from dung:
In which case it would get shipped back.
If you go that route, I wish you luck. It's VERY common. Just last night, a friend who buys displays often was talking to his supplier on my behalf. He told them I needed a LP156WF1-TLF3 or B156HW02 v1. They quoted a LP156WF1-TLF3 equivalent, and sure enough, it was a N156HGE-L11. Even the spec sheets say the N156HGE-L11 is the same, but I have one, and it's not.
It would suck for you to pay additional for the better display, then end up with one that is basically the same performance as I'm planning to use. It would have sucked even more for me to have that happen in bulk.