What should we legally do if all the batteries leaked acid out on sheets dressers, ruined appliances, got on my side and my wife's hand burnt?

We had bought some batteries and used them in various units. Before we realized what had happened, we called the retailer several times. They called the manufacturer. The manufacturer called me once and missed the call. I have called them several times and have not had a response and asked him is this have to be a legal issue or what but still no response. My wife called his supervisor and she said she would have him return our phone call. Three weeks later, there was no response.