Is it possible to change the bank name on an existing payment document

Hello,

We need to update the bank name on an existing payment document for printing checks.  When I try to update the bank name, it states the combination already exists.  if I create a new account, it will work but we need to use an existing account.  Has anyone tried this to know if it works?

Steps to recreate:

Payables Manager - Setup - Payment - Bank Accounts

Enter VECTREN CORP CHECKS for the ‘Account Name’ and click Go

Click the name in the Bank Name field

Click Update in the Bank Information section

If I change the name to Bank of America, I get an error message that the combination for bank and country already exists.  If I use a new bank name, then it lets me save it.