Consult with a solicitor. don't go out of the UK. I did the same and a law firm put my application along with their original law firm authorization certificate and they withhold my application for 3 weeks after my student visa expired , during those 3 weeks I got my final results and provided it to ...
my cousin was having same problem. His visa was getting expired and he was still waiting for the University's results to be announced for his dissertation. He did following two things. (1): He obtained an letter from the college, which confirmed that he had cleared all his modules except the dissert...