Chances are your username is the email address you joined with. If you have multiple email addresses then check which of those accounts has received emails from macedonrangesdogclub.org.au and use that.
Check your Spam or Trash folder before contacting us.
Also have a read through of our Renewal Tips to guide you through the renewal process, we've also covered paying via PayPal even if you don't have a PayPal account. It's a surprising simple process!