Info Network Management Co Pvt Ltd — Payment not received, unethical behaviour

Address:	Chennai, Tamil Nadu, 600017
Website:	www.inmac.in

July 1st week I have said to design my company's website and gave them Rs.4000 in advance .More than 2 months they did not show me any kind of demos and after that on Sep 30 I directly went to their office and wrote a letter that they did not do the work given at time so i wanted my money back.After a month they credited into my account of RS.2000.and the balance amount is not yet paid by the company
They are not responding me back.So please kindly help with this issue. The vendor who came to my home is Prabhakar his contact no is [protected].Its been 8 months since they did not return my money