My son's rifle has play in the barrel as well as a gap between the the barrel and the the breach face. I was told to return it. How is the best way to do this ? NEF said not to mark the box as a firearm. All I have is the box it came in. I would also like to have the trigger adjusted, how much is this going to cost me? How Much is the repairs going to cost me? I have owned the rifle over one year.