There are 2 things that you'll have to additionally upload when you have a relative in Canada
1) Proof of Relationship - Passport/ DOB or any other document that shows the link between you and your relative
2) Family Member proof of status - Their PR card/ Canada passport / COPR
Since you have wrongly uploaded, why don't you try creating a CSE mentioning the same and also send them the appropriate Proof of Relationship document thru CSE. That way, you can at least see if they are considering your request