Customer Deposits

We opened a new checking account a couple months back because of fraudulent activity in our main account.  We thought we had updated all of our defaults for everything but just realized our customer deposits are still posting to the old checking account.  We have figured out where to update the account that those post to but what I am wondering before we make any changes is what would be the best course of action to remove the customer deposits we have already posted to the old account into the new account.  Just void the customer deposits that have not had an invoice posted to it and make a general journal entry for the remaining customer deposits that have already had an invoice applied to them? Or is there a better way?  The one problem I am concerned with the voiding of a customer deposit is that I have already made a bank deposit of those funds which deposited into the new account, so voiding it and re-entering it to post to the new account will put a payment into bank deposits section.  Also, will the void show up in the old checking accounts reconciliation?  Trying to not make a bigger mess while attempting to clean up what has already been done.  Thanks for any advice...