I have a Discovery Stalker

On the 18th of February I was called by one of the Discovery appointment setter this person works in the Discovery FA department. An appointment was made to arrange a call with a Financial Advisor. On Friday I received a strange email from the call centre agent pretending to be someone else claiming to have a love interest and left his phone number on the email. So I asked my partner to message this person to find out how he got my email address. He **** at first saying he got it from a friend then later came out with the truth that he was the agent I was speaking to. This person might have all my personal information and I am afraid he might do something bad. I have evidence of the chats and the email he sent.