Clio 1.1 billabong edition - Can't get my key into the egnition

Hi all, I own a renualt clio 1.1 Dynamic Billabong Edition 16v, just last week when I went to put the key in the egnition it won't go in, it will only go in half way and I don't have a clue what the problem could be, does anyone have any suggestions what this could be or how it could be fixed? Thanks

Clio 1.1 billabong edition - Can't get my key into the egnition