Hi
I had tried to call ato many times to get the linking code for my son but I couldn't get through it. No ATO staff answered the phone. My son is a student and he worked some casual work in December 2023 and he is new to the ATO. He never lodge tax return so he doesn't have any information for the 2 questions.
Are there other ways that i can contact ATO (emails or postal address?)
Your help is much appreciated. Thank you.