Welcome to the forum @Les1952.
Send us a message and we'll be able to confirm the email address that's been registered. Normally, this issue pops up if there's been a typo in the email address that's been registered. The team will respond back to within the hour.
We've hidden your e-mail address on our public forum.
What does the error message say?
Please send a message to our Optus Sport team for assistance if needed.