HI, im in the same boat as u, i sent a correction (additional info of past refusal)at cpc m then my sponsor call the call center if it was added the guy said resend it the visa office to be safe, so i email the visa ofice csq, i Actually emailed them twice cos i made mistake in attchments i press send instead of upload so 1st email is incomplete,so i sent it 2 times puting a note about the mistake(imagine how stressful is that,keepp doing mistake

), but i assume they will read my 2 email, im still waiting for my aor too its been 17 days, i sent email just to be sure and make myself comfortable, so that in case they question me about correcting it, i did my best to correct the mistake i did via leter and email) , i didnt get auto reply but i assume that get it, im just sharing u my story, not telling u what to do, maybe we should wait for other senior members to comment
