Venmo Froze my acct and kept funds California

Venmo froze and then subsequently closed my account. They said I was in violation of their policy. I read through and found I had done nothing wrong. When I inquired as to why, they said they can't discuss and the acct has been closed. Then I asked, how can I get the funds that were still in the venmo acct I received the same response, "Acct has been closed and I'm sorry I cannot discuss anything further." If they don't want me as a user of their online payment system, that is their choice. But how can they just keep the funds that were still in the acct?!!! Horrible company, they know it would cost too much to go after them legally, it would surpass the funds I was after. Shame on them