Reading that again carefully:
https://www.blackarrowsoftware.com/store/progress-update-20-feb-2014.html14.We have completed the design and manufacture of the banners for the Texax Bitcoin Conference.
http://texasbitcoinconference.com/ . This announcement confirms that we will be present there; Minersource, Our reseller from USA, will represent us.
... that means Black Arrow won't be there and their directors won't show up. It means they have design and made the banners (which will say "Black Arrow") but no onew from Black Arrow will show up!
Minesource could be a victim of their scam or part of them, too. We're not sure who Minesource or Bobsag (is he from Minesource) is.