Not delivered what they commited

Location/place: noida

Name of company/service: Cyberknight limited delhi

I have made a website (www.noidapropertys.com) through cyberknight limited. two moths ago. They have taken the full payment in advance but not completed the website yet. I have been calling them all and given the written request many times but now the started to ignoring my calls. because of them i am facing finacial loss.