我朋友在国内申请Eb1a. 他刚刚交了DS260，现在需要提交材料。但是他的账户里根本没有提交材料的链接呀。
-Contact NVC to see what happened.
请问可以邮寄吗？如果不可以该怎么办？
-Unless NVC instruct to do it, the documents cannot be mailed.
Read these links:
Submit Supporting Documents (state.gov)
Submitting Documents to the NVC (state.gov)
多谢
