Misleading Promisses

This Forex trading company persuaded me to open an account with them. They told me they can help me to make an additional income and that I only needed to put an amount of R3000,00 (South African Rand) into an account with them. They called me many times to open this account, which I did. One of their representatives explained to me how much money I could make, but then I must deposit more money into this account. I explained to him that they told me that the minimum amount they told me was R3 000,00. I now try to get my money back from them, but they don't respond.