How to get a classmate kicked out in the correct way?

I'm seeking advice as I need to figure out where to begin.

I was born in the South, but I'm currently living in the North and studying for a degree in drama. We don't have "exams" for our course, but we do have performances. Last year, our university, after years of fighting for this, finally got the marking from individual marking to one group marking, which means we either all passed or all failed.

I've been seeing a lot of posts on various social media platforms about students not turning up, and we're having issues with that now. There's a guy in our year group who's only turned up to one lecture, and when there have been group presentations, he hasn't done our bit. The lecturers understand why we don't have this bit in our production, but sometimes, whoever's group he's placed in always feels like they've failed even though our lecturers have stated this won't affect us and they'll make sure of it.

We've been having some private discussions and we all understand he may have a lot going on but we are personally sick and tired of him not attending now as he doesn't message nor respond to our messages.

As a class we've spoken to our lecturers who state they don't have much power and they've explained we have more power as we're students and have to work with him. We want to start the process of getting him kicked out but in a correct and legal way but we have no idea where to begin.

Any advice would be much appreciated.

From students who are sick and tired of a student not turning up.