Sad but true.
If CIC returns your application package without an AOR, meaning they considered it not to be complete, then for all intents and purposes they never received it. "No file will be created or record kept until a complete application has been submitted" (http://www.cic.gc.ca/english/information/applications/guides/5609ETOC.asp).
If I understand the OP correctly, he/she enclosed a blank 'Representative' form in the original application package. Do not do this! If the 'Representative' form, or any other optional form, does not apply to you, then do not enclose it.