Complaint in a nutshell

Sometime ago, one Shopit4me.com from Delhi (the company does not exist now), organized a Kawasaki Bike contest in which I was wooed to also joint by paying a sum of around Rs. 9900, eventually they fished out more money from me saying that to remain in the contest I have to pay to increase my points. However, I lost the contest. But later, they contacted me through e-commerce Delhi and told me that I would get back my money (Rs. 2.5 lakhs) back plus an extra bonus totalling to Rs. 5 lakhs that was to be paid to me partly. Then they told me to pay the processing fee for sending the money to me, which I did, initially an amount of 20,000 and later more amount have been given but they never paid me. My last transaction was a few days back when someone saying from e-commerce New Delhi, told me that I would get paid Rs. 5 lakhs on partly payment basis, but I have to pay the processing fee, which was Rs. 11,500, which I did but they never contacted me thereafter. I have the account No. and the name of the company where they asked me to make the payment. But they never contacted me thereafter. Kindly help me get back the money.