Supertech Builder (Eco - Village 2) — Not Refunding My Money

Address: Uttar Pradesh

This buider is a huge cheater.
I booked a flat in supertech Eco vilaage - 2,
After booking they not only chage my flat number and direction but also they chaged the tower name.
When I ask for such a reason they people didn't give me any suitable reason , Moreover theeir behaviour so disgusting. So as a result I submit the application in supertech to make my flat to be cacelled and refund my money. Even I also submit original slips and affidevit as per they demanded to make my flat cancel and to refund money
But now they extend week by week to refund money (from Last two months).
It is humbly request to please take some serious action against such big cheater builder.
So that they can't make fool others as they did with me and also help me to refund my money Please Please.