make sure the part that protrudes out that goes in the condenser area is lining up... the first time i tried to put on the bumper it was doing what you said it was doing.... the bumepr looked higher than the rest of the car... i was frustrated as hell
i even scratched my lights..... the next morning i saw that the part that goes in the condensor area was not aligned... right when i lined it up it just fit into place..... try it out bro
hope this helps