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Hi @Jah02bink,
Welcome to the community!
Thanks for raising this to us. Do you receive error message when trying to make phone call or sending SMS?
Also, we'd like to confirm if the SIM card has been successfully activated you may visit this article for additional reference How to activate your TPG Mobile SIM card.
On the other hand, here are the articles that you may find helpful.
Let us know how it will go.
Cheers!