Complaint against infonex company regarding job offers

I am a student from Vijayawada one day i searched home based jobs in quicker app and i found some one day a company called InFonex called me and said it’s a simple. Captcha work and in one day 1000 captcha i have to do and i said ok  and they took a legal aggrement from me .After few days i am unable to do it because for every 150 words it’s clearing and starting from 1 and i understood that the app is automatically clearing the captcha and it’s is fraud ..2 days back they called me and threatned me and said if u pay 9400 you will not get any problem further so i paid them ..but yesterday they called and said that  my id not closed if u want to close for life time you have to pay a 3month penality fee taht is 28200. And i spoke to them they are they we will proceed legally.. please help me …please