I wish I could help you. Adoption can be so complex.and such a painful situation to navigate.

I dont know if there is a forum here on PC. I do know of some really good support groups, though, that are available here in the states (I was adopted and the agency my parents were involved with provided support groups). Also, I know of some support groups with Ts facilitate through their practice for adoption issues.
Have you checked online to find a group near you in Cornwall?

Hugs to you and your son. I imagine it must be very difficult to give up a child for adoption. My heart to yours

Please feel free to write if you have any questions for me