Let me help you log in to your account, @info-rw-solution.
Try to check the login page that you use for QuickBooks Self-Employed (QBSE). Here’s the sign-in page for QBSE UK: https://uk.selfemployed.intuit.com/login.
It’s also possible that you’ve created an account for QBSE US. This is why when you try to log in to the account, it routes you to the US page.
You can check this link to create an account for QBSE UK: QuickBooks Self-Employed UK.
Here's also an article to know more about QBSE UK: QuickBooks Self-Employed Overview.
Drop me a line if I can do anything else for you. Keep safe and have a wonderful day!