I have the same problem. I am overseas now. I have diverted all calls to voicemail and the diversions work. I tried calling +61 414 121 121 and then followed the prompt to enter my mobile number but it says "the number you called can't be accessed through this number". It doesn't ask me for my pin (I wasn't asked to set up a pin when I spoke with cust service agent). Now I have pending voicemails that I can't access. Customer service says I have to use my TPG sim to call 121 and access it, which is ridiculous coz I will incur $1 per minute charges. Why can't I access my voicemail box using the 0414 number? Is it because of Pin? If a pin needs to be setup, then why not allow me to do it on the online portal? I can't even use tpg 4G voice app on my android to change any settings. Seeing how other people faced this issue 2 years back, I believe TPG still hasn't fixed it. Can you guys get this sorted!
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