Auto & General silent on 3rd party claim.

I had my mirror knocked of my car in December 2020. The responsible person is insured by Auto & General. He lodged a 3rd party claim. By February 2021 I heard nothing of my claim. I contacted him and he was shocked that it hadn't been fixed yet. So he agreed to a conference call with Auto & General. We were assured the legal department would sort it out. It is now May 2021 , still have not heard from Auto & General. They have all my details , but have just stayed silent. It has been 6 months that I am driving around with a broken mirror on a brand new car. Had it been my insurance, Mutual & Federal , this would of been resolved asap.