Airports Authority of India — About the blacklisting my documents

They called me and after telling about the job I was ready for it. But for the interview and registration they asked 2100 and after that for the training they asked 7550. They told to pay it urgently and they did not have the time to think about it. And suddenly they messaged me that my documents will be block for 10years. So this is totally fraud. So what should I do now. They are telling me that I have misbehaved with them.