Despite recent action by the ACCC against a certain company, owners of domain names are still being scammed by this company offering domain name renewals.
Your valid renewal should be from one of the following

INA (Internet Names Australia)
INWW (Internet Names World Wide)
Melbourne IT
ClickNGo
Network Solutuions

Treat all domain name renewal notices with caution and contact
Richard Muratti 03 9387-0919 or webmaster@ccoz.com for advice.