Typing Task — Demand for money

Dear sir/mam,
I have a complained against; m/s. Typing task, gujarat; (A part time online job providing group).

I show my interest in above part time job providing group to see high salary package. They had given me 700 forms which i have to complete in 7 days. I started my work on 18 may 2020, at that day they did not shared with me any agreement and without my permission they used my digital signature for their so called agreement which was not disclosed with me at the time i joined. I completed 570 out of 700 forms upto 21st may midnight and i have to submit the project on 25 may 2020 around 1:38 pm so i decided to check my filled on 22nd may but before that the company locked the starting 200 forms and made changes in the forms which i filled and they do the things in such a manner that i will not be able to complete my target of 90% accuracy that's why they made changes in 70 forms so i raised the complaint with the person why these forms are locked then he told me mam as per policy within 48 hours that forms are locked. But before starting the work he didn't inform me like that so i started writing mail to the company within the deadline of the project but they didn't listen and reply me back that target is not achieved so i have to pay 7000 to them as the portal usage and maintenance charges. I shared the screenshot of the fraud to the company as well and now they are sending me mail for legal notice and said that they had file a case against me in session court surat. And shared with me case no. Ul/68217e today morning.
Sir /mam pls help me in this matter.

Messages shared by them are...
1. M/s. Manisha prajapati your legal case id ul/68271e is going for legal proceedings. Kindly hire a lawyer and go for further process. We at typingtask are going with legal proceedings under section 73, 74, 75, in the indian contract act, 1872. Due to violating the contract. Call for more details +91 [protected]

2. As you have denied to close the case by paying the portal and maintenance charges according to the contract which was signed by you. We have to proceed legally and your case will be filed in surat session courts (Surat). You will be charged under sec 73, 74 and 75 as per the indian contract act.
Regards,
Legal department.