I just got the same call from them at my place of business, The guy who left me a voice mail his name is William Brown. He said a Mr Allen Smith has signed off on my case and I have no idea who this is and what type of scam they are running. If its a real business they would not block there number. They said my case number is 143197-CA124. This is a scam. Don't let them scare you. Laugh at them and hang up.