Lecture for DPR1504 Aniekie Motloutsi not responding to emails after numerous follow ups

First semester we wrote 2 online assesments and 2 assignments together with a POE. All the assignments and Assesments were above 75% however the final mark is 54%. Sent an email to the lecture however she has not been responding since August after I received the results.

I would like to understand how the 54% final mark came about as it would appear that some results did not get included