Hi so my wife sent her passport to her birth country for renewal and they contacted us that they are holding the passport because its been expired for awhile and she hasn't left the US yet for almost 8 years. they said they needed a letter from immigration proving that she is not a US citizen. We are doing her papers right now but we need her passport/ what documents are they talking about or we can show to show she is not a citizen here in the US. by the way Im the one holding a US citizenship. Help please..