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Thanks for your query!
Let me have a look for you, and I will get back to you ASAP.
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
What plan are you on, and what plan do you want to go on to?
You could try the phone app also.
I have escalated this to our accounts officers.
Someone should call you back ASAP to help with your plan changes.