If your college is not following your Americans with Disabilities Act or ADA accommodations, it depends on where things stand in the process, but ultimately, you should have an experienced attorney advisor take the necessary steps on your behalf. Say, directly at the school as needed with the appropriate school administrators and/or the school's office of general counsel, the school's attorney to put them on notice that this is the concern, and the expectation is that the school address the matter and correct the concern.
If the school is receptive to that, great, that can be a potential outcome. If, say, that were not to be effective for whatever reason, steps could be taken to address the matter through the Department of Education. Steps can also be taken to address the matter in federal or state court as needed.
It's a serious matter when a school does not respect ADA accommodations or say accommodations under Section 504 of The Rehabilitation Act. Having an experienced attorney advisor will be your best ally in terms of addressing such a concern. They'll help you understand and navigate the process and what would be best to take place moving forward to address the concern.