They call you from nowhere saying that you have registered your email, and added your phone number. Something that I do believe that they probably bought emails from a database, and they try to make you believe that they are a personal assistant to help you out investing your money on the stock market.
They have called me and I said that I never subscribed myself in any of this, the guy tried to make me believe that I registered my mobile number back on march (2017), which is impossible, since I got a new number on july (2017), then he was completely disrespectful, and I do believe that his actions changed because he saw that I figured it out that this is a scam.
Be aware of it!