Hi @brianclar ,
Welcome to the community!
Thanks for bringing this to our attention. If you are on TPG NBN service with unlimited plan I recommend to ignore the email.
For your safety, please post the screenshot of the email on this thread. We will confirm if it came from TPG as it could be a possible a scam or phishing email.
In my plan it says uploads & downloads free,also my hours are unlimited so why did I receive an email to say I have Neally used all my time.