回複：Ask: Materials for I-539

Thanks Pijiang. 

When I was talking to my school advisor, she told me I also need the following things.

COPY of your admission letter from (my school).

  COPY of your SEVIS fee receipt.

Is she correct? Or she is confused by the "certificate" too?  About the SEVIS fee receipt, should that should just be the 290 check?  Or do I have to pay and get a receipt before I mail all my documents?