The Office of the Ombudsperson is an additional resource for graduate students concerned about their academic career. While the Graduate Regulations site should always be referenced for concerns regarding graduate studies, the Ombudsperson also provides a frequently asked questions page and guide list to help you understand the options available to you if you believe you've encountered unfairness in your education.
The Office of the Ombudsperson always recommends talking to your supervisor before taking additional action. Don't hesitate to email us at email@example.com about any concerns you have or if you have any questions regarding the information provided on this website. We are here to help guide students to a fair resolution.
Want advice from someone who's been there and done that? A new, very useful resource for graduate students is the Society of Graduate Students' (SOGS) Peer Advisors for Academic Matters. Email the Peer Advisors at firstname.lastname@example.org and arrange to meet with a fellow graduate student to discuss the conflict you are having, the grade you are disputing, and other matters. Graduate Peer Advisors can also attend meetings you have with administrators. Sometimes it's good to have someone beside you to take notes and make sure you remember all your points.
There are lots of other great resources for when a student or faculty member are encountering conflict. The University of Minnesota's Academic Civility and Dignity Project is one such resource. Check out the project's web site for great tips on what to do when you are encountering conflict.