Panind — refund my money back and cancel my pan card application

It was my mistake, i thought it's a government website but later i get to know it's not. I have paid rs.499 which is quite high as compared to government rs. 110. Then i mail them regularly from that day regarding refund. And they sent 2 3 auto reply mail that extra money is taken as a convenience charge. But i didn't receive my money back. So it's a kind request to you please ask them to refund my money as soon as possible.
And every day hundred of people are getting trapped in this money scam so do stop this website and take a strict action against them.