See the letter describing the submission process in the supp material folder on myUnisa.
If you do not follow the procedure described there to the letter your portfolio will not be marked.
If you have not uploaded it by the due date your portfolio will not be marked. The submission system will be closed after the due date, and no exceptions will be made.
Do not even attempt to use code from friends. The new submission system makes is very easy for me to compare your code. Work on your own - you can ask questions on the forum.