Taken my money

One of my relatives has recently taken money from me to buy a house. While asking for money, he promised that he would return next month but did not respond for then-upcoming three months. After waiting for three months, I asked him to return money then he told that I should be aware of the situation myself and not ask for the money.
Now it is hard for me to talk to him and our communication has dropped down significantly. If I call him, he never responds and if somehow he picks the phone, he says a set of standard excuses like he was busy with kids, was in a hospital, had some festival or some one came to home and similar others.

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