Is there any chance of changing this to open or would we lose if we try to fight it?

Our daughter gave up her son for adoption when he was 3 years old, to a relative…beliving that he would then be able to continue to have a close relationship with us.  She was very emotionally sick at the time and her cousin who adopted the little boy got her to change it to an closed adoption telling her that it wouldn’t change anything.  Is there any chance of changing this to open or would we lose if we as grandparents or even my daughter tried to fight it? The promises that were made in keeping us as grandparents involved have been not been kept.