Stop spam calls

They claim them to be a stock or crypto trading company. They called me and said I was browsing their website and would like to give me more information. I asked them to call after my shift hours. Another person called me and started explaining me about the website. I said, I would look into the website and get back to you if it interested me and hung up the call. The next day again during my shift hours, a person called and started talking rude to me, saying it was me who told to give a fol