Recently we had solar panels installed on our roof by Australian Home Services. Australian Home Services contracted PH Electrical to do the installation. When they installed the panels they screwed through into our asbestos celing. Now Australian Home Services are demanding we pay them for the installation saying that we have to deal with the contractor that did the actual installation for the damage caused. Am I within my Australian consumer law rights not to pay Australian Home Services until the damage caused has been fixed to it's orginal state? Thanks!