Hi there, hope your well. I can tell you that you would not be able to get a merit based on your academic performance, its as simple as that. In order to be awarded a merit, one must have achieved grades of merit in at least 120 of the 180 credits one was taking including the dissertation. Sure you got a merit in your dissertation which is good but you have 4 D's not even passes. I have a very good friend who missed out on a merit and his grades were better than yours. That being said, Masters degree's are tougher than Bachelor degrees and achieving a pass is still something to be proud of. Most Employers btw wont even care for the grade you got in your masters not unless your applying for a job in an ultra competitive company like Boston Consulting group or Mc kinsey who place importance on strong your GPA is. Only other situation where your Masters grade would matter is if you were applying for a PHD. Other than that, you passed. well done!