[Resolved]  E Zone Enterprise — harassing to pay again for cancel agreement

I get a job to fill 10000 captches in 10 days but i didn't complete it then company told me that you have to pay penalty 5000 and if you cancel agreement then you have to pay 4500 means you have to pay total 9500 and your agreement will be cancel i also pay this amount but after three days i received a mail that you have to pay 14500 to cancel agreement otherwise we will take legal action please help to solve this issue i have all proofs which shows that i am not guilty