I think the vendor and the builder have an agreement.. both are good people.. I have bought from both.. I am sure there is no wrong doing.
If that's the case, then all is good. LIke I said, I am not in need of the vendor's name - if people know him and can vouch for him, that's fine by me. As they say in my neck of the woods, "I wasn't saying anything, here. I'm just saying."