iPhone screen replacement

The shop.....which was likely not authorized for Apple repairs (despite what they might claim).....installed the wrong part.

They should have told you that they did not access to genuine Apple parts and were going to use a cheap "knock off" part instead.

You are going to be stuck with that message unless the shop can install the correct part.

Congratulations. You have forfeited your ability to service or support from Apple by installing or having installed non-Apple approved parts.