Rear bumper

Hi all I have just got a 2013 sportback only had it a week and forgot to put hand brake on and car has gone down the street and hit a post and broken the rear bumper just wanted to know is there anything you can do with the hand brake to make it come on when engine is turned off also is the bumper on the coupe the same as the sportback and mine is the se will the sline rear bumper fit.
Thanks