Quikr — Harassment for money

I received a call from one person and she sad they call for form filling of 410 with in 5 days and share all details on whatsapp. They ask for ID proff and photo and signature for registaan. And on the time of registration the lady tell me sir if you not complete your work then you have to pay registration fee. I am not complete my work after 5 days they send me message on whatsApp and tell me to pay the amount because you are not complete your work, . They asking for for money for close fir copy, to give NOC, and for notary also and i paid all amount. Again they asking for affidavit charges this was happened on 10th march 2021. If I am not pay the amount then they will go for legal process. Kindly please help me what can i do. Please help me