Check to see if the Company Brinks/the Salesman and the Installer were licensed with the state
You should check with the state to see if any of these people were licensed. Everyone associated wit the company along with the company should be licensed through the California of consumer affairs/ Bureau of Security and Investigative Services. You can check if the people have ever been denied a license or if they were accepted. I believe on the denied list it goes back to 2001. If not dile a complaint or for mediation. You may be able to get a refund. You should also check to make sure they had a city license if it was required. Along with who ever monitored it, they also need to be licensed to do buisness in city and state.