Check your email! Similar to the 50,000 bonus points deal from a few months ago. I received an email saying there is a 25,000 point bonus for setting up direct debit.
Before getting the idea to reactivate a deactivated direct debit, the terms and conditions say you cannot gain the bonus if you have already received a previous one.
"Telstra Plus Bonus Points:
Set it up today, and boost your Telstra Plus balance with 25,000 bonus points. Put them towards must-have devices, accessories and more. Offer valid for 30 days.
T&C: Telstra Plus Offer: The Telstra Plus offer is for invited customers only, and is only available to customers who have not previously received any offer or bonus for signing up for direct debit. This offer can also only be taken up once per customer. To take up the offer, you must have an active Telstra Plus membership, and set up Direct Debit within 30 days of receiving this message. The points will be added to your account and visible within 14 days of your first direct debit bill payment. If you cancel your direct debit arrangement within 90 days of registering, we may reverse these bonus points. The Plus points expire 3 years from earning."