screech339 said:
You can send in the extension to stay as a visitor form with the submitted sponsorship application form same time.
They are actually supposed to be sent separately.
I'm guessing you applied inland. Even though Vegreville has different addresses for receiving inland PR apps and visitor apps, they are within the same building, so the first officer that opens the file can forward the extension app to the proper office within the building.
But for those applying outland, the sponsorship app must go to Mississauga, Ontario and the extension app to Vegreville, Alberta. If they are sent together to Mississauga, CIC will not mail the extension app to Vegreville, they will return it to the applicant.