Hello there, @Sam7310.
In QuickBooks Online (QBO) UK, Open Banking is the only connection you can establish to connect your bank. This new platform allows customers to share their financial information electronically and securely which is confirmed every 90 days.
To check which bank you can connect to your Open Banking, you can refer to this article: Upgrade your bank feeds to Open Banking.
If the bank is not there or missing it means you can't connect it to your Open Banking.
To bring your transactions in QBO, you can manually import it. This way, you can also get older transactions from your bank.
You might also want to read this article to know more about how to match bank transactions in QuickBooks: Match and Categorize your Downloaded Bank Transactions.
Please know that you can always post any questions you have. Have a great day!
