Fxhilton Pvt Ltd they are cheater couldn’t response and pick up the phone

I am from West Bengal Kharagpur. My name is Devendra Bag. 3 months before I invested some amount in fxhilton for auto trade intially this company responded good and I got my withdrawal but after that they gained my faith and asking to invest more and said sir you will get triple bonus and that amount I kept for my father heart operation. But I thought if I invest this amount I can get more money for my father operation as money was short for operation and I invest but after that when I used to withdraw they asking for more money and after few days they couldn’t response and pick up the phone and suddenly I saw in my demat account balance is 0. I shocked. Please sir help me to get back my amount so that I get operation of my father.