Dear,
Now a days many applicant rcvd similar email.....
Now, What I can suggest,
1. Take an employment letter from HR stating ur employment duration and working hr.
2. Take another job duty letter from ur boss with a descriptive job duties syncing wih ur NOC and prev submitted job duty letter.
3. send all relevant employment letter like ur promotion/salary increment/bonus letter/few recent payslips.
Thats all I can suggest as of now...Earlier two of my colleague rcvd same letter (MI-2) on Sep14 and they have rcvd their Visa on Dec 14....
Also:
"Consult other same NOC people with the text of your JD letter(s) to see how many boxes you can tick. Remember to pay attention to the lead statement (introductory paragraph) as those count as JDs for FSW purposes too. You need to meet a "substantial" number of the JDs and most or all of the lead statement. Be hard on yourself and ask others to be hard on you. Assess honestly where the deficiencies are and try to get an additional letter "giving further information" from the same person who wrote your original letter. Don't contradict anything that you've already said, just expand upon it and make it perfectly clear that you fit. If there are any sort of supporting documents that show you performed those duties you should include those too--maybe some records of projects you worked on, copies of instructions you received from superiors showing your duties, something like that."
Hope for the best....