They damaged my car

Miway sent Autoboys Rayton to replace the windscreen on my Mercedes Benz. The fitment guys tore my roof-lining, side panel and pierced my windscreen. Can’t believe the damages done just by fitting a windscreen! The two (Miway and Autoboys) are liaising on how to fix these damages but I’m really disgusted, disappointed and frustrated as my car is only 2 months old and it has such terrible damages now. On top of that, they were dishonest and said I reported other damages, which I didn’t. I’d never recommend anyone to use them.