Hi Rakit,
you dont have to be sorry my friend, it's a pleasure to help a future "fellow citizen" ....
well during the e-APR i uploaded only the EDE report from WES and the language test results. But after after a few weeks i raised a CSE to add my diploma and it's translation just to be sure and to avoid any unnecessary complication.
so i highly advise that if you didn't uploaded your diploma in the education section to raise a CSE in order to add your diploma. you will receive a reply that your diploma has been forwarded to the agent in charge of your case in 10 days.
best of luck friend.