[Resolved]  Rey Technology — blackmailing via mails to pay money

Address: cobalt pet 1st line, behind jagan mohan rice mill, Guntur, Andhra Pradesh, 522006

I am mythri from guntur, andhra pradesh. I heard from one of my friends that there is a data entry job and after doing it we are going to get 35000 rs as salary. So she gave me a number to message. I texted them and got my job... They gave me a demo work link and told me to understand the work.. After completion they asked me to install an app to do online sign... But without even asking my permission they copied that sign on an agreement where there is a condition that if i failed to do 90% accuracy in work then i must pay 6700/-... But i completed all the work properly even then they are asking me to pay 6700+8800 as penalty... They are harassing me to pay soon... If not they are blackmailing that they will take legal action against me..
Please help me out