Should I be concerned about a potential error with my TM47 reporting and can I file TM47 online just 5 days before the due date?

I'm on a yearly extension of stay for retirement based on a non-immigrant O visum.

Before doing my last TM47 90 day reporting online on 02/01/2025, approved on 03/01/2025, my next reporting was due on 16/01/2025. Now the next one is due on 02/04/2025. So far, so good...

This morning, I received an email saying this:

"Your receipt for notification of "STAYING LONGER THAN 90 DAYS" will be due on 16/01/2025.

(...)

Please apply TM47 request online or contact the Immigration Branch Office in your residence area before due date."

2 questions:

1) Should I worry that Immigration may have bungled up my last TM47? I just checked in the online system where everything still looks good.

2) Useful to know for the next time: Can an online TM47 nowadays also be done just 5 days before the due date? The email text suggests that this is the case but I think TIT also applies here and it might be a "misunderstanding"... So far I thought that it was only possible 14 days to 7 days before the due date, hence I did it 14 days before.

#TM47