Let's perform some troubleshooting steps so you can update the account number, DS57.

There's a possibility that the update didn't go through. You'll want to update QuickBooks and get its latest features and functions. 

Here's how:

1. Go to the Help menu and select Update QuickBooks Desktop.
2. Proceed to the Update Now tab. 
3. You can mark the Reset Update checkbox to clear all previous update downloads.
4. Select Get Updates to start the download.
5. When the download finishes, restart QuickBooks.
6. When prompted, accept the option to install the new release.

Once done, restart QuickBooks for updates to take effect. Then, follow these steps again to change the account number.

1. Deactivate Bank Feeds for an account.
2. Make the necessary changes.
3. Set up the account for Bank Feeds.

If it isn't updating, I recommend contacting our QuickBooks Desktop Live Team. That way, they can check this for you and provide additional steps to get this fixed.

Once your account is connected again, QuickBooks will start downloading bank transactions. All you need to do is categorize and match them. 

Let me know if there's anything else I can help you with updating the credit card information. Just leave a comment below and I'll get back to you.