Update: As Things progressed, I first sent a note to Feedback@lendingclub.com, then to someone in the Affiliate section and then a third to an email address supplied to me by the online chat support at LendingClub. I've now heard back from all three, promising action.
LendingClub in many ways have turned out to be what I was hoping Prosper would have been. My ROI over there is also substantially better than at Prosper. Still, I'm not so sure I want to stick more money into either.
Wait. Let me rephrase that. I'm damned sure I don't want to stick money into Prosper. I'm ambivalent about putting money into LC.