Yieldbuild – Does anyone got paid?

I am using yieldbuild since the last week of the April, 2009. I am displaying their premium ads at one of the blogs. I was told by them that my first check would arrive in August. But I don’t see any signs of the check coming.
I just wanted to know if anyone else if displaying yieldbuild premium ads and have got paid by them? The program is great and is a good supplement to your adsense earnings but I am in doubt if they will pay the amount or not.

See original post by nikmahajan