Atel Services — Fraud lottery

I received a message saying that i have won 25, 000 on kbc lottery. They asked me to send account number and a photo then they asked me to wait for few hours . Later they asked for 12, 000 deposit for recieving the lottery amount. After depositing they again asked for 24, 000. I got to know about the sus so I asked him for returning the deposit but he refused to do so. Please help me out and help me for refunding.