More specifically, with BlueBiz you earn a certain amount of points (Blue Credits) depending on your fare class and route. Each point translates to Eur 1 and can be used to pay for a ticket you would have otherwise used money for (so no limited availability etc. such as with FB award tickets). Also, the official word is that if you do not register your BlueBiz number before your itinerary is ticketed, you will not earn your points. Quite possibly, this is done to prevent people retroactively claiming for tickets that were not used by company employees. Of course they could have just implemented the system that they promised when the program started: all tickets paid for with registered credit cards or from registered bank accounts would automatically earn points.