Oh, now 'referred by'....that's a new twist. Am sure IF that were to happen, the EO would have let you know first.
There are only FOUR sites (3, if you eliminate the fact that with one of those you get a free listing to a basically worthless directory w/a paid BGC) worth paying for. This is one of them. The other 2 have been mentioned ad nauseum. When can we stop asking if this, that or some other directory is 'worth' it.
If anyone has paid for one of the many others and actually gotten business, please post & prove me wrong. I will not be holding my breath.