I worked in a job from Jan 2010 to July 2013. This is the only job for which I am claiming points. I have a reference letter for this job that has all the information IRCC asks for. However this letter was issued in October 2013. Is it fine to submit this letter as proof of work experience? That company has merged with another company recently and I cannot find any contacts who can issue a new reference letter. I do have all the paystubs that I will attach along with the reference letter.