Scam and fraud

I saw an advertisement on the internet that caught my attention and I agreed to it and they asked me to fill out a form to receive a response. After a while, a lady named Vanesa called me and explained to me about the advantages of investing in this platform, which interested me.And then I decided to follow the process in which she was indicating to me and I had to invest 200 dollars, which I decided to invest. The next day a man named Nicolás called me and asked me to fill out more documents so that to continue the process and be registered. They did not call again and my messages were not answered which made me doubtful and I decided to withdraw my money but at that moment of doing so, it appeared to me that I had to wait for a response to the explanation that I presented for the reason for my withdrawal. After a while, a man named Diego called me asking me why I was reluctant to withdraw my money when presenting my arguments. He agreed to call me the next day at 6:00 pm but I have not received a response from him so far.