Called and asked to trade by Cashcode Trading

Hello forex, I want to ask about trading.
I received an email and phone call from cashcode trading, they told me to join the trading and someone has sent around 4000 dollars to your number. Because I don't know about trading, I said give the money to me for capital and learning trading, but they insisted that I join the trading. Finally, I chose this, okay, I ask for half of it, 2000 dollars sent to me and the other half for joining the trading, but they didn't give an answer, instead they said my money in the account has increased even though I didn't click on the trading. I have proof of an email that someone sent money to cash code around 4000 dollars for me to be registered in cash code trading, please explain how the money can be transferred and I can join trading without any risk because they said there is no risk. I want the money to be sent to me and I have the preparation to face the trading because they also asked for my master card number but I haven't given it to them, please explain, thank you