Get wise guys! The people writing on this site that they got money back are working for this scam. Read the reviews of people who said they didn't get their money and believe them! It's a scam. I mailed my calculator four months ago. I never received money and can't seem to get a person to talk to me. I've e-mailed and called. The calculator was in wonderful condition. I wish I had taken it to a pawn shop instead.