***** or Not

I have come upon this Daimond Profit where AI is doing you trading. I Deposited R1 200 to trade...then I was called to guide me and tell me what and how it is done. I was satisfied....the person helping me was friendly and helpfull...BUT...later I was asked to deposit more money...I did and in total I deposited R5 200. The trading was good and after a week I was told that I will be shown how to withdraw my profit...BUT here the problem started....they were trying to force me to deposit more money so I can make more money...I refused and this is where they start to be rude....they know what they are doing and I have to deposit more...the more I try to explain why the more they wanted me to either close my account....I was really satisfided by the profit....but I was never showed how to withdraw....my question now is...Why??? or are the *****s that are trying to get hold of my money?