Hi, thank you for your question. How old is the child and has there been a paternity test to determine who the biological father is?
Thank you for the further information but there remains some unclear points.
-Is there only one child, or two?
-You state that you met the non-biological father when the 13 year old was 2, but I do not see how he can be registered on the birth certificate as you have 42 days from birth to register.
My name is ***** ***** I have been a solicitor for more than 30 years.
I assume that you and your ex simple re-registered the birth of the child as of course you are fully entitled to do.
I am afraid that the only way that this can now be changed is by the production of a DNA test either showing that the named father is not the biological father -
or that some one else IS the biological father.
Since your ex husband is willing to agree to the change then you need to have a DNA test done using one of the officially recognised firms and then send it to the General Registrars Office for his name to be removed.
The Biological father's name can only be added if he agrees - or you take separate court action
Please ask if you need further details