All links to forms such as your invoice form, availability, lesson update to parents etc. will be privatised on Friday 31st of January 2020. This just means that from this date onward you will only be able to access and complete these the forms if you are logged into this Tutor Portal.
Since you are reading this message from already within the Tutor Portal, you should be okay! But if you notice any technical issues or you can't log in or complete a form for some reason, please report the bug immediately by sending an email to firstname.lastname@example.org