Further on interaction with both Google and Facebook. When we started noticing these problems with Facebook, the only way to raise the issue was to post to their support forum, where they reply with massive delay and with canned "we just count them differently" response. And that's in during the period where we had 3 boosts running, with daily budget of over $100.
Google, on the other hand, assigned a manager who called and walked me through a few tricks and helped to improve campaign settings, including some steps that helped us, but were not necessarily advantageous for Google. Thats during a $20/day budget period. Right after the call I doubled the budget.