Hi u have removed my standard grill and put a Matt black painted grill on but am stumped in how to get the grill back on the three clips under the grill?

Can someone tell me how to do this ?

you push it in, they just clip into the holes in the top of the bumper

It was the clips at he bottom I was having problems with but with alot of perseverance I got it on, now I don't want to take it off again so may just lacquer it on the car