During our open beta this week for FeedZeBirds.com, we discovered a bug in our Twitter advertising system. Twitter was rejecting retweets of some campaigns, because they contained URLs and special characters that Twitter counted as going over their 140 character limit.
This meant that some retweets were paid out, but never actually occurred (bad for the advertiser, no big deal for the tweeter).
We've resolved the issue now, and the paid missing retweets will be sent out automatically (so the advertisers will be made whole). As an additional compensation for the bug, we're funding the advertisers who this affected with .1 btc in their campaign as a little bonus.
Twitter users who had retweeted these missing ads will now see the ad appear in their timeline.
Our sincere apologies for the bug, and once again it's now fully resolved.
P.S. For those who are curious, URLs now count as a minimum of 20 characters. We'd love to not bloat your URL lengths, but this is how twitter counts them.