Congratulations!!!
Yes, you need them, they will send a notification within a month and will give you a deadline to submitt all the missing documents.... How could I tell?? Because last year my matric certificate (degree) was missing and I attached the result card only ....then when asked to submitt my degree before psychological test, I had to apply to the 'board of intermediate and secondary education ' for a duplicate....
Good luck with psychological and viva...prayers and wishes ur way