This is an update of the offer described here
With more bonus data.
Was in store today and they advised just updated last night, and to go into store for offer!
For new or port only, not for existing Telstra customers.
Note: The $200 & $300/$500 gift card deal is for new or port in customers (as already stated). However existing customers are still eligible for the extra double data on both plans and are also eligible for $300 credit for a phone purchase on the $65 BYO. Thanks BenTennyson.