I recently ran into an issue with D&B misspelling our company name. This was a massive hassle and I made over 6 phone calls to them and they kept on saying there was one more thing that had to be updated and it would be another 7-14 days. Each time I only found out that the update was not complete because I would call Apple to figure out why the iTunes Connect account was locked.
I finally got fed up and sent this tweet: https://twitter.com/sjsivak/status/276826269377765376. They called me the next morning and fixed it that day.