Job Search Net — Harassing for money

I signed their job but I could nt complete it now they are asking me to pay fine of 5900 and they say they will take legal action plz help me I can't pay this much amount nd I hv not said this to even my parents. Resumes are soo much that we can't even complete it plzz help me if any body faced same problem plz can't me on my mail [protected]@gmail.com