For different accounts you need to change the account ID on the Settings tab before saving the QBO file.
Also open the Cart of Accounts in QuickBooks
and if the account you to import to has yellow strike icon, edit the account, click on Online Services tab and select "Delete/Remove online services link" and save the changes.
You can INTU.BID that defines the bank identifier on the QBO file on the Settings tab as. Click the Look up button to find your bank. If you bank is not listed, keep the default value 3000 (Wells Fargo) - this is only related to the QBO file to have your transactions imported - you will choose the account during import.