Thank you. It is reassuring for me. I attached: birth certificate, marriage certificate, child's DCPR, wife's DCPR, child passport cover letter explaining why I thought child fulfills criteria for registration under 3(1) and of course my application was done at the same time. But NCS staff were not ...

Can I please kindly ask what other supporting documents have you attached to MN1 forms for your children?

I have applied recently, but registrar at NCS was not sure what should be included in applications under section 3(1) for EEA citizens.