Get online support
Hi @yukioyasui
Before cancelling, do you mind if i ask what seems to be your problem and is there anything i can assist you with?
You can post here or PM for a private discussion about your service.
There is also a new ''TPG Mobile APP'' to help you with various trouble shooting and account issues, via a mobile phone app.
https://www.tpg.com.au/download
Kind regards,
David_M