I had the same problem with my QB 2021 Premier Edition payroll - it was showing "Reactivate Subscription" all the time.  This just fixed it:

• From the Employees menu, choose My Payroll Service -> Activate Service Key
• Make sure your payroll service name is highlighted and click on Edit.
• A window should open with your Payroll Service Key in it and your Federal EIN.  Make sure the Key is correct, then click on Next.
• A Confirmation window should open saying "Your Payroll Service has been activated." You can un-check the "Open Payroll Setup" box, then click on Finish. It should then download any payroll updates and confirm that your payroll service subscription has been validated.

Hope this works for you!

David G.