Get online support
Hi
You can change your address online.
https://community.tpg.com.au/t5/Broadband-Internet/Changing-NBN-Plans-through-My-Account/m-p/6962#M3...
However is you want to relocate service please follow
https://community.tpg.com.au/t5/Accounts-and-Billing/TPG-My-Account-Accessing-your-account-informati...
Thanks