Formfilling — Data entry and form filling

I am a student. And i thought to work from home for earnings. I searched for work from home companies in quicker website. I applied for one company they called me and also massage me on whats app. they give me work for 10 days to complete 1000 forms with 90% accuracy.firstly they said its just copy and paste work you do not have to type anything much.and if work is not completed by you then company will give more days to complete the work.after getting document and signature of me give the work and there is no copy paste option then i searched about this company and Then after that i got that this is fake company. I call them and tell them to cancel my registration they are saying you have to pay 5500. if you dont give then legal action will be taken on you.what i do sir please tell me.please resolve my complaint.