If you do not know your token and cannot find it some other way, then you can use this form to have your token sent to you manually by wattle.id.au administrator, so that you can then use the change form.
You can also use this form if a token was never allocated to your wattle.id.au domain (for some domains created in 1995-96).
It will probably take about 7 days for this form to be processed.
If you have trouble with this form, or this form is not suitable for your circumstances, you may instead contact hostmaster at nic.wattle.id.au. Bear in mind, processing valid forms takes priority over processing email.