At registration found out that the date mentioned on agreement is 3 month old

I GOT call from one of the employee dg services named sweta and she tell me regarding this form filling job and after listening to her i thought of check this out and at the time of registration when i read agreement which i found old and the date of agreement is 3 month old than current date and at the time of verification after listening i clearly said i am not interested but they still registered me and when i called them back to ask regarding this at first they didn’t pickup but when they do they said if you quite now you have to pay 4900 and with choice i completed those form after spending 2 days to check those form i submitted and even in that case they give me false qc reort , and one fake advocate keep mailing and messaging me to send money and threatening me please look into this matter . hoping your consideration in this regard and the details are as follow :- name :- dg services employee name approach me :- sweta contact (sweta):-[deleted] site name :- workfromhome.in and eranbysurvey.in advocket name :- sunil patil contact;-[deleted] company helpline mail:[deleted] i want to know if the agreement is legal on which the date is mentioned 3 month older than current date