Ditto what Scratcher said. They told us all what they really want are good contacts who you've flown with, and good phone numbers. I seriously doubt that putting do not call is a negative. They said it isn't, and these aren't the type of people who mislead, they don't need to and wouldn't anyway. No games there, take your coat off, drink the water, etc. for the interview.
Scratcher, nice avatar. Our German students in P-Cola have it shipped down from their embassy quarterly and we get some occasionally as checkride gifts. Best wheat I've ever had.