As a distributor, do I earn QV on orders where rewards are redeemed? What about BV?

Yes, you earn BOTH QV and BV.  However, when Youngevity Rewards are applied to orders on Youngevity.com, the full amount will count toward your Qualifying Volume (QV), but your Business Volume (BV) will be calculated based on the discounted amount. Example: When a Distributor or Preferred Customer applies $10 in Youngevity Rewards toward a $100 order, the Distributor will pay $90 for their order, Qualifying Volume (QV) will be 100, and Business Volume (BV) will be 90. 

NOTE: Commission is earned on Business Volume. Example above assumes normal QV & BV on $100 order would be 100 QV and 100 BV