The best thing for us is when Traderboy gets the file # we should each (individually) in our own words email them with our own suspicions and whatever proof we have to them (help@sec.gov) .  Just make sure you put the file # in the subject line.  Everyone has a different piece of the puzzle and when a case worker looks over the entire file (all emails) they can piece it together.  This is better than just one letter.  Multiple emails from multiple investors is best.  And will grab their attention faster than just one complaint.