It seems CIC implemented a mean to notify them about your specific delayed applications via their site:
https://secure.cic.gc.ca/enquiries-renseignements/canada-case-cas-eng.aspx?_ga=1.241344459.873947521.1399486767
You may use this form if:
You have submitted an application.
Your application has exceeded normal processing times. We will not respond if your application is within normal processing times.
You wish to report important changes, such as a change in address, births, deaths, marriages, divorces, adoptions, changes in employment or urgent requests.
You wish to change or add a Representative and you are ready to upload your Use of Representative Form (IMM5476).
You hold a study permit issued before June 1, 2014, and need a letter confirming your ability to work off campus and need a Social Insurance Number (SIN). To receive a confirmation letter, you must:
select 'International Student – Confirmation letter to work off campus' in the form below,
provide your client ID number (unique client identifier),
provide your file number (study permit number), and
attach your Letter of Enrolment or Letter of Acceptance from a designated learning institution.
https://secure.cic.gc.ca/enquiries-renseignements/canada-case-cas-eng.aspx?_ga=1.241344459.873947521.1399486767
You may use this form if:
You have submitted an application.
Your application has exceeded normal processing times. We will not respond if your application is within normal processing times.
You wish to report important changes, such as a change in address, births, deaths, marriages, divorces, adoptions, changes in employment or urgent requests.
You wish to change or add a Representative and you are ready to upload your Use of Representative Form (IMM5476).
You hold a study permit issued before June 1, 2014, and need a letter confirming your ability to work off campus and need a Social Insurance Number (SIN). To receive a confirmation letter, you must:
select 'International Student – Confirmation letter to work off campus' in the form below,
provide your client ID number (unique client identifier),
provide your file number (study permit number), and
attach your Letter of Enrolment or Letter of Acceptance from a designated learning institution.