I have an active account: Working with AdSense
I have an active DFP (DoubleClick for Publishers) account that has been using for a couple years. I have recently activated the AdSense back-fill and have earned over $100. My question is in DFP there is no way to know about receiving payments for these backfill AdSense ads.
FYI - I have also recently setup another AdSense account but it is not activated yet. I don't plan on using this account if I can just use the DFP account and earn revenue with backfilled AdSense.