We received the letter asking for a photocopy of my husband's passport photo page (he is American) and his photos. I am wondering which "courier service" people have used to mail in the requested documents. We checked with Fedex and they said it would be about $50.00 to use them for sending our documents to Canada and the return pre-paid envelope (which seems crazy since we could mail a regular envelope to Canada from the US for the price of a regular stamp). It does say that passports cannot be returned via regular mail, but we are not sending in his passport since he is from the US. Thoughts?