Responses were received from 14 of the 29 global systemically important financial institutions (G-SIFIs) and 25 of the top 50 global banking groups measured by total assets listed in the Banker Top 1000 World Banks 2013. BIS central bankers’ speeches  3  A regulatory red flag I would raise here is around rampant mis-selling in sale of third party products, especially insurance.
Another recurring consumer grievance is around compensation for failed transactions/frauds. Of course, as institutions, banks have more muscle as compared to “resource poor” individuals, but as guardian of customer rights in our role as regulators, we would quite closely monitor misuse of such might against the customers.