Hi Annee,
My wife is the same situation in Pakistan right now.
Did you try to contact/ go in person to Islamabad embassy (since we are citizens should be able to visit our country's embassy consulate) and find out why our interviews are not getting scheduled. I also have a son (who go his citizenship) and am now thinking of quitting my job and return to Pakistan (or at least for the time when my wife gets the PR). I saw the CIC minister Mr. Hussain making speech online today saying all the changes he has made, but we dont see any on our end, I am thinking of writing him an official letter signed by MP.
Who else is waiting more than 12 months want to include into this letter ?
There's got to be another way