Shellyp,
CIC website says about 2nd AOR:
A letter (Acknowledgement of Receipt) is issued to the applicants once their application has passed a completeness check. This letter indicates the following: “CIC has reviewed your application and determined that it meets the requirements of a complete application as described in section 10 and section 12.01 of the Immigration and Refugee Protection Regulations.” This is the official Acknowledgement of Receipt letter and it may be used to support a BOWP if all other requirements are met.
Maybe you indeed can use your request as this 2nd AOR letter. I'm kind of regretting paying my RPRF in advance... Now stuck without 2nd AOR and no requests for anything.