Consumer Redressal

This is with reference to my flat no.602, vatika seven lamps, Vatika India Next, Sec 82A, Gurgaon. I bought this flat with construction linked plan which states milestones & accordingly builder can raise demand letter for each milestone. Vatika has raise demand letter for "completion of flooring" without completing it for apartment. On raising a concern from my end, vatika replied bedroom (2 Nos.) & kitchen will be installed at the end, but you have to pay full amount of this demand other wise interest will be charged. Vatika office address & contact details as follows: 5th floor, Vatika Triangle, MG Road, Gurgaon, Ph: 0124 435 5555 Please suggest how to raise complaint against vatika in consumer court. Regards Sachin Sehgal PH: 9013434434