My brother was recently denied a student F-1 visa to study aeronautical science at Embry Riddle Aeronautical university in the US.We contacted the school and they drafted a letter of appeal and sent to us but we asked them to send it directly to the embassy.Please is this a good move,how effective is this and the school wants to know to whom the letter should be addressed(and the email address).Please anybody with an answer should help asap.Thanks

I think you should directly contact Justwise, Shallon or Vicjustice. They are experts in this sort of thing or better still go to the US Student visa thread and ask your question, you will be attended to promptly.