I appreciate you for providing on-point details about the banking access you have with your FD accounts, @rossholmes. Rest assured that I'll share the information about this bank connection issue. 

We want to make sure we're compliant with the new Open Banking regulations. With this, there are no changes to your existing connection. For more details, see the First Direct section through this article: Understanding If You Can Upgrade Your Bank Feeds To Open Banking. 

As for the re-instating the FD connection, the investigation (INV-43299) about this is still in progress. I assure you that our product engineers are actively working to resolve this disruption. I'd suggest contacting our Customer Care Team so you'll be added to the notification list. They can send you the investigation updates via email. You can also refer to the steps provided by Rasa-LilaM above on how to get in touch with them. 

Once Open Banking connection is available for First Direct, you'll see a banner on the Banking menu. You'll also receive an email from us that contains the steps you'll have to perform to complete the update. For more information, check out this article: Upgrade Your Bank Feed Connection To Open Banking. 

You can count me in if there's anything else you need. Take care always, @rossholmes.