I ran into something like this one time with an HSA account. An employer opened an HSA in my name without my authorization. I already had a third-party HSA account and had declined all offers from the employer for this new HSA account or automatic withdrawls to this new HSA (I managed the HSA contributions to the third party account, tax deductions, etc. on my own).
I only became aware of the new account because I received the debit cards for it in the mail. When I found out they had opened an account in my name, using my employment info, without my authorization - I was hot. Chewed out the company HR reps, personnel reps, and anybody else I could think to call. The company reps told me I had to call the bank to close the account. I questioned how they could open an account in my name, but couldn't close said account - never did get an answer to that.
So I called the bank, told them what had happened, and they said there was a closing fee (something like $20). I reminded them there was no current balance, never would be any balance, and there was a snowball's chance of me paying that. They "checked with the manager" and agreed to waive the fee and close the account.