Change of Address - Google webmaster tools

I have my two sites verified in Google Webmaster Tools. Today i tried to apply for change of address. From and old site to newly designed site. The change of Address.

Google saying that i need to verify the site i wanted to redirect from which is already verified by Google Webmaster Tools.

We couldn't verify oldsite.com.au. To submit a change of address, oldsite.com.au must be verified using the same method as www.oldsite.com.au. Add oldsite.com.au to your account and verify ownership, then try again.

Here we need to understand one thing. www.sitename.com.au and sitename.com.au were treated differently by Google. So we need to verify both of them

I did it. Then Google accepted my change of address (redirection request) from old site to new site.