Get online support
@Kirahwhite Thanks for your inquiry. The Community Articles and discussions below may help:
https://community.tpg.com.au/t5/Broadband-Internet/Update-Credit-Card-or-Direct-Debit-payment-detail...
https://community.tpg.com.au/t5/Accounts-and-Billing/Changing-account-holder/m-p/1324
Kind regards,
Joseph D