Starting this year (2017), Citibank is debiting my accounts with account management fee. Asked them about this fee, but they could not provide a justifiable reason for imposing such fee. They said, it's Citibank VN's internal regulation and policy. I also have accounts from other banks here in Vietnam, but they are not charging me with such fee. I want to know if to whom shall I send this concern, to know if Citibank's action to impose management fee to my account is valid and legal.