Procurement Role in Expenditure

I need an assignment for my certification, I have submitted an assignment but I got 30 mark out of 100 which is failed . The passing mark is 70 . I need to edit on my assignment not create new one  I will share their feedback about my assignment so you can edit and where to fix . It's very professional training institution so the writing must be professional. 

Attached files  below : 

1 : my assignment which I wrote and failed

2: general guidelines 

3: feedback of my submitted assignment and why I failed 

4 : the questions and requirements of this assignment

- Please read the general guidelines to incorporate it

- please read my assignment

- please read the feedback I received for my assignment so you know what to fix 

- read the questions. 

- must add references

- must be 3000 words

- must add introduction, recommendations, conclusion 

- incorporates examples from SABIC company like you work in Procurement in SABIC which is a company in KSA . You can open their website and get information.