Front Number Plate Surround

I managed to ding my car on a pole in a car park at one of our clients and i've got a little hole in my number plate...Was just wondering what the part number is, price and how much of a hassle it would be to fit! (dealer costs?)

I'm really mad with myself. It's virtually unnoticeable but I've been looking for an excuse to get a new number plate anyway:)

For reference, it's the black bit that people hate that goes around the number plate...