@tiredofthisshit21
Totally understand this. I'm in almost the exact same position - my DC is heading to uni this time, and has had 2 years of living full time with me - all throughout A Levels. Dad has contributed zero towards her financially. Literally nothing, and bleats about the fact that she doesn't want to see him, despite making zero effort, and making her life an utter misery when she did see him. The icing on the cake was that His new partner and my daughter didn't get along and I think it was all just too difficult for him.
On the other hand I've had a hell of a 2 years picking up the fallout / consequence of this. Suicide attempts, self harm, the huge cost of counselling and many, many sleepless nights. My career, studies and mental health have all taken a huge hit. But it's what we do. We are parents and it's our job.
So it's doubly irritating when they won't contribute financially. It's the least they can do.
Fortunately for me, he did finally agree to contribute a little something towards uni costs. It took me a long time to persuade my ex that it was the right thing to do. Originally his contribution was going to be his old hand-me-down clothes 
It's not as simple as "well she has chosen not to see him so why should he contribute". Because parenting is unconditional. We don't get to opt out. And we have a responsibility to make sure our kids feel safe, warm and loved when with us. Something that OP's ex, and my ex, failed to do in spades. Borderline abuse. This is the consequence.
In a nutshell, you can't make him contribute unfortunately. At least not very easily. For me the legal route for finance wasn't worth the huge further toll on my mental health, only to fail anyway. You said upthread that she will get a job - my DD will do the same and fit it around her studies.
Personally, I would work on trying to accept the status quo, for the sake of both you and your DD, unless you have the strength to pursue it legally.
Good luck! I fully sympathise.