请问DOS favorable recommendation应该send 给U.S. Citizenship & Immigration Services (USCIS) Vermont Service Center (VSC) 还是California Service Center? 刚才打电话给USCIS询问I-612 receipt number,接线员说DOS应该给California Service Center send recommendation.但是联系DOS, DOS 告诉我 我的case 已经send 给USCIS Vermont Service Center (VSC)。请问我该怎么办?联系DOS 要他们重新给 我send recommendation 给California Service Center? 谢谢!