I am actually embarrassed to admit this, but I think the Passport Agency might have asked for more information because I forgot to include my husband's passport in the application!
The below is a letter I received from them:
As xxzz was born in the United Kingdom after 31 December 1982, they may have a claim to
British citizenship if one of their parents were free from immigration control when they were born,
so we need evidence to confirm this.
WHAT YOU NEED TO DO
Please send us:
the passports on which xxxxxxx' mother or father used to enter the United Kingdom, or the
passports/Home Office letter/permanent residence card showing that a parent had indefinite leave
to enter or indefinite leave to remain in the United Kingdom at the time of xxxxxx birth.
If xxxxxx x born before 1 July 2006 and your/their father was settled in the United Kingdom at the
time of birth, we will also need to see their parents' marriage certificate. A parent will be settled in
the UK if they have permission to stay here permanently, such as indefinite leave to remain.
I have already withdrawn the application, because we are travelling at the end of the month, and I didn't think we would get his passport back in time. With the above in mind, if I made a priority appointment, and just submitted my son's father's passport, alongside the application, photos, birth certificate, son's passport, and dad's naturalisation certificate, would this be enough to receive a passport for my son? Or do I have to collect P60s, payslips, etc, for the last 5 years still?
Any help would be great! Thanks