Migsun — Money refund

I have booked flat in migsun roof at rajnagar extension. We have told that they will provide us the loan for remaining amount as we have paid only 20%. We even visited number of times to there office. But all in vain. Now they are telling us that there will be no refund. according to the policies, all our money will be deducted.
Kindly help us. It is our hard earned money. They are not providing us any kind of help and it’s been 2 years almost…
Thanks