What should I do if I cannot provide a job reference letter for each position since 18? I always get a record of employment when I leave the company; however some of them only include the duration of employment, job title and type of position (full-time vs. part-time, permanent vs. temporary). I tried to contact my former employers for a new letter but I do not have any luck so far. Fortunately all my previous positions are of NOC C so they do not qualify for EE. Can I just submit what I have and write them an explanation letter?