Hey Ivan, one thing that is most important while writing a dissertation is that your document should be easy to navigate. So, maybe your dissertation is perfect but it lacks in presentation. Or maybe your title is not clear and precise. Perhaps you haven’t used key terms in your abstract. Maybe the conclusion, limitations and recommendations of your research are too generic. Possibly, the literature review is not linked with your research aims and objectives. Well, there are so many reasons, anyone of them might have led to your 2:1 dissertation. You need to thoroughly re-check your dissertation to identify the problem and get rid of it. That’s how you can earn a 1!!