In order to set up your Google Apps with us, we'll need an account under our management and responsibility, so that we can provide full service and support for you.
If you've previously had Google Apps via another provider on the same domain and account name, we'll need to transfer the Mailbox into your account with us, along with the domain name.
To do this, we'll need a transfer token. This can be requested via http://admin.google.com/TransferToken where a token can be generated once you've signed in. You can then provide us with the token and we will take care of the rest.
This can be a bit complicated, so please speak with your previous reseller to ask if they're able to do this for you. If you're still having problems, give us a shout on 0330-122-1010 (UK) or 844-411-0200 (North America) and we'll help you out.