I don't know where you are, but it sounds like you are having to deal with US export control laws which, to most engineers, seem quite restrictive. They (and their counterparts in other countries) tend to get out of date, with the effect that they ban the export of commonplace parts which were state-of-the-art strategic technology a few years ago. This would explain the questions and possibly the missing parts. Don't know about the wrong address though - that just sounds sloppy.
Steve