So a decision has been made on our file. Apparently they have approved the application, hence they've requested original passport. In the messages they've attached for us a passport letter request. Strangely they have no where in the letter mentioned that our application has been approved, only saying that a decision has been made and they need the passport for finalising the process. Notably in the 'Application Steps' table found in the online account page they have written :
Your application was approved. You need to send us your valid passport to finalize your application. Check your messages below for details.
Well, whatever.