They used to call me several times a day and I wouldn't answer. Then I checked the internet and saw that some people posted that SSI would claim to be a survey company and after asking several questions the caller would then try to sell something at the very end. Last time that they called, I answered and I stated that my number was on the "Do Not Call" list. He tried to tell me that it didn't apply to their company because they were only taking surveys. When I told him what I had seen posted on the internet he hung up.