This may happen if your IELTS score was below the CLB benchmark. You need to have minimum 6 in each module, if you belong to skill level 0 or A.
Please share your NOC code and IELTS score.
Re: Emailed Ottawa withdraw application. What happens next?
You can follow my case here. I was also in similar situation but received my MR recently.
http://www.canadavisa.com/canada-immigration-discussion-board/changed-ielts-score-can-cause-rejection-t164039.0.html
We just got our medical request ....the mail says see the document attached, the document attached is the medical examination instructions, just to make sure this is the medical request????