I had a friend go through similar. He got stuck on having to provide a birth certificate for the country he was born in, which he wasn't able to provide. They wouldn't accept anything other than the original certificate from the country he was born in.
I think there are exceptions though, someone posted here a while ago that they were unable to provide a cambodian birth certificate but there was an exemption for some countries.
I think there are exceptions though, someone posted here a while ago that they were unable to provide a cambodian birth certificate but there was an exemption for some countries.