Today there is a Penguin update, quite a few people get hit by it, especially some people with multiple sites in my monthly service.
I go look what's going on and they are building 100's of spammy links per month on web directories, forum link profiles and more of that crap.
And all month long they are complaining to me that their rankings don't move fast enough (no freaking surprise).
No idea why they even outsource it when they think they can do it better their selves.
Next time I'll inform them in the confirmation emails that they should NOT build any links their selves or buy any other link package, unless they source their self for niche relevant links at high PR pages, what a bullshit.