Engen Midway Mews damaged my car!!!!

A fuel pump fell on my car and Engen Midway Mews tells me they can’t be held liable for the damage caused by it on my car because they have to investigate? Manager is rude and owner is conveniently “on leave”. They refuse to have a statement taken and want me to leave my details on a ***** piece of paper. I ask what guarantee I have that this matter would be sorted out if I leave these details and they tell me they will call me. When? No response!!! Engen Midway Mews you had better fix my vehicle!!! And fix that pump that “does this all the time”!!!!