- thanks guys, what you've both found is what we saw too and what's concerned me, the fact it is so unclear. I'm hesitant to query it with immigration and it become an issue that might not even be picked up if that makes sense... I'm hoping that because it was gained purely for a passport it would not have caused loss of citizenship, was just wondering if anyone had any personal experience with anything similar. I'm hoping that as it says in this quote that because it was acquired through applying for a passport he will not have lost it. Additionally the fact that he's since had Aussie passports issued to him and our kids have been given Aussie citizenship should indicate that they class him as an australian cirizen