We have a Citi XXXX XXXX credit card and we received an email saying there was a message in our secure message center on citi.com. Upon logging in and reading it, Citi took it upon themselves to close our credit card account WITHOUT notifying us they were doing so. They said that " in our customers best interests, we do not notify them that we close their accounts ''. This is unacceptable. No other credit card company that we do business with does anything like this without notifying us first so that we can take the proper actions to prevent it. I tried to resolve this via their secure message center but they said that they can not reopen the account. These are predatory and unfair business practices. 
