The same happened to me .
My visitor extension was denied because I had applied for a work visa before but then I decided to withdraw but because they request medical exam before I decided to Withdraw, they denied my visitor extension till I have the medical exam done . I did and applied again for extension and restoration of my status .
How is your situation now ? Did you get answers ?
I did get some answers...I was out of the country for 3 weeks, then came back and was given 4 months on a visitor record. Once I was back and had a valid status I went ahead and sent my OWP application on December 12th (I just linked the application last week).
From what I was told by the immigration folks at the border, it is good that I didn't send my OWP with my PR, as I didn't have status (but they also said I didn't need to do a restoration of status, since I had been refused that day and left Canada immediately, so I also kind of didn't not have status on Oct. 31 when I sent my PR application). It was a weird thing.
Here's hoping that your restoration goes well!