Hi
Welcome to the community!
We did an article that yo may find helpful, this will guide you on how to change your Mobile and NBN Plan via 'My Account'.
Please see these links.
In case you wish to change your ADSL2+ plan we will have one of our Account Specialists to contact you, feel free to send us your best contact number and preferred time together with your account details.
Let us know should you require further assistance.
Cheers!
