Find biological family in Guatemala

So I want to serach for my family. I was adopted in 04. My parents are supportive of me finding them. I found out about what Guatemalan adoption was really like( like being lied to and other things) . And I found agency called the CNA and search orgin that Guatemala has to help people find their family. But like anyone would we are skeptical. Is there any where we could look to make sure it’s legit? My parents and me want to look into this. It seems like an awesome program but we want to do our research. So anything on facebook or any information would be helpful. I’m so excited to get the process started.