loan Organic took 485$ from me Internet

Recived a call about a loan said I had to go deposit 183$ on a greendot card I did then was told had to pay fees 300 and thst I was to also purchase another card and do the same. I did then I waited on phone for several hours while he so called did the paperwork and then 1600 would be in my account. he came back on the phone and then said my credit score was to low and to get it to where It needed to be for the loan. I would then have to send 700 more dollars. I then told him I no longer wanted the loan and to refund my money and he then said it was to late that my money was gone and there was nonthing I could do about this. Im in need of help. please anyone this was my kids Christmas and I wont get another check before Christmas. im desperate please help me.