Gbr Investor - Fraud done by the company

From last month I have been receiving a call of Riya from Indore to activate or a registration in her firm. At last by making fake promises and emotional attachment and benefit of my financial compulsion she registered me in her firm (GBR investor) as she told. Following the transaction, she made by gave fake promises.
She said first you have to register with us by taking **** INR. I took it on **.**.****.
Then take a service of order booking by her team member - *****+*****= *****. I paid it on **-**-****.
Then she told me to take service of * lac return then first you have to pay its **% of total service amount (*.* lac). Then I paid ***** on **-**-****. So total is ***** INR.
When I called them that I want the refund of all amount they denied. Please help me. I know only her name and mobile number. Also, I know two more people name Rohit and Ashish which are the senior of Riya.