Trying to look for new Aussie drama tv series?

Question

I saw the trailer in an Ad now I can't find it searched everywhere. It's Australian tv show I remember it was a girl in high school some guy asked her for money at the train station, she only had $50 to give him then jump foward she ended up getting in a relationship with him but he was a lot older he was 23 and the parents weren't happy and she had some trouble at school. I remember it was streaming on an online platform but I can't find it or the trailer and don't know the name does anyone know what I'm talking about?