To delete your SBS On Demand account, go to https://myaccount.sbs.com.au/ and sign in with your email address and password.
Once you're signed in, navigate to the "Manage Account" page where you'll find your login details and subscription preferences.
Click the "Delete Account" button to remove your SBS On Demand account.
Note: you will also be unsubscribed from all SBS Newsletters if you have previously signed up to any.