I think the OP has said, he has not yet received his AOR.
Correct, but what if the AOR went to the spam folder and got deleted? Without checking if he / she is able to login
to ECAS we just don't know what happened.
Maybe he received the AOR, accidentally deleted the email... As long he's able to logon to ECAS and check the application status, it's all good.
My advise will be to contact the Intake office and check with them. This is their email Address CIO-Sydney-Search-Enquiry @ cic.gc.ca . . For more reference check this page http://www.cic.gc.ca/english/immigrate/cec/apply-after.asp .
You need to ensure you give full details like Name in Full, DoB, CoB, Address etc so that they can identify you Application.