Hiya, I've recently applied for passports for me, my husband and my 3 oldest dc, it's the first passports for all of us, I've just received a letter from the passport office asking me to send my birth certificate for my oldest dc (he's 9) and my husband got a letter asking him to send his mum and dads birth certificates and their marriage certificate...we don't speak to his parents so can't get these, is this normal? My brother didn't have to do this when he applied a few years ago. We were all born in the U.K. As we're our parents. Thanks for any help.