Citigroup has once again raised the ire of Japanese regulators. Less than two years after Citi CEO Chuck Prince personally visited the Land of the Rising Sun to apologize for the missteps that led to the closing of its private bank unit there, the country’s Financial Services Agency has slapped its remaining Citibank NA unit with a business improvement order for “faults in basic programs” and “rudimentary” mistakes, according to Financial News. The FSA charges the bank with failure to develop a “a framework and control procedures to respond promptly in the event of systems failures.” Citi Japan publicly apologized for its errors and as a gesture of accepting responsibility, its chief executive and head of consumer banking, CFO and chief administrative officer gave up 10% of a month’s salary, FN reports.