iFexcapital defrauded me of all my investment.

The broker iFexcapital defrauded me of all my investment, the advisor named Cristian Sarria told me to invest and diversify in stocks and currencies. At first, profits were generated and then the trades closed by themselves because they reached the loss limit, and the advisor did not tell me about it. They do not authorize me to withdraw the twenty-five dollars because the minimum to withdraw is one hundred dollars. They sent me a pdf document that they want me to sign to release them from responsibility, which I did not do. I have images and videos, and I still have access to the account, but they do not allow me to withdraw what little is left.