NO WAY!!
Really sorry to hear this Phil, as you know from our conversations I know how much work went into getting your zed back on the road. I cant believe the cowboys have left the front bumper like that, its a complete bodge. As above though mate, contact the insurers with photos etc, maybe even say to them you want the repair work to be carried out by a company of your choice.
Its one thing after another with your zed, I really feel for you, lets hope this is the last thing!