Generally, the agency or judge will try to make the adoptive parents do what they said they would do. But even if the parents refuse to obey your contact agreement, the judge will not undo the adoption.
In addition, the court may refuse to try to make the adoptive parents obey the agreement if
- it is not in the child’s best interest
- things have changed since the agreement was made
- you and the adoptive parents cannot resolve your fight over the agreement