Sphere Company — asking money

Address:

562107

I was not able to complete the job within time. So i have already paid amount for that. Again they are asking me to pay large amount money of money.. Or else they will take me to court.. What should i do.. Pllz help me. Some advocate called me to pay amount... Already i have paid the amount.. I am really scared.. Help me pllzzz.. They are saying i have to pay 15500 within half an hour or else my file will be sent to court.. Pllzz help me sir.. Anyone.. I just have half an hour