She's right, unfortunately. The USC will want it, and if the court have retained it, you'll need another copy of it.
Having said that, there's no reason for the court to actually retain it in this case.
Get my original Birth certificate in Poland
I was born in Wroclaw, Poland in 1992, but my parents moved out soon after that with "birth certificate extraction", while by original birth certificate is still somewhere in Wroclaw.
Now my parents want me to get the original copy of the document, so I was wondering, where should i write or call, and what information do i need to get it?