Angry and frustrated customer

I would have given them zero if I could. The bank closed my account because of *****, without warning and they're investigating but I my issue is that they're refusing to get me access to my account so I can take my money, money that belongs to me that wasn't given to me by the bank. I keep being told to go to the branch where they cannot help me, and the calls are also a waste of time and airtime, as I get the same story, and the email address shared with me is also useless, as I get no responses. I am utterly frustrated and have no sight of a resolution when all I want is my money so I can be done with this bank.