Some banks may be using private blacklists to block clients and staff who complain about their actions.
Firms like Control Risks and Kroll keep these lists.
This should be outlawed.

check out our links...
http://money.cnn.com/video/news/2013/11/18/n-asher-interns-sue-companies-job-prospects.cnnmoney/index.html?iid=S_Taboola

http://www.bbc.co.uk/news/business-30146247

http://news.sky.com/story/1152734/payouts-for-blacklisted-construction-workers