Welcome to TPG Community!
I've managed to check your mobile account and determined that you have 100 international call minutes. Hence, you must be able to make a call to an international number. What country are your calling? Can you confirm the number format when you dialed the number?
We'll wait for your response.
Thanks for writing us back. I will have a mobile specialist to contact you, so this issue can be checked thoroughly. You will receive a callback between 12-1PM NSW today via mobile.
Our sincerest apologies for the inconvenience.
We still support international calls to Iran however, it is not included for the 100 minutes international call plan.
Calls to Iran will be Pay-as-you-go.
You may check this link for more info: https://www.tpg.com.au/mobile#international-call-rates-mobile_
Yeah, I should buy an add-on and paying an extra charge to call Iran. If I want to pay extra for international calls, I prefer using applications like skype. I am just wondering why I did not receive any notice from TPG that u want to make some changes in your international calls for near two months I thought my balance is not enough for international calls and I just learned about the changes after I called you guys. Thanks anyway.