Logically, I bought a house, which belongs to me on ownership housing, developers unjustified my house as collateral, and only I have the right to own real estate collateral.

• 照理说，我买了房屋，这房屋的所有权就属于我了，开发商没有道理把我的房子作为抵押物，而只有我才有权抵押自己的房产。