Udcon Enterprise — Not responding after the work is done

Address:

WZ-58-61, First Floor, Vashisht Park, Pankha Road, West Sagarpur, New Delhi 110046

I am Shahin Sultana. I have applied for handwriting job in Udcon enterprises company firstly they asked me to pay 1500 which promises to provide work from home and asked me write 30 pages.i have completed my project but they are not making any payment, neither attending the calls nor giving proper response .Its been 16 days i have sent the courier but there is no response from their end.
Please help me.