Thanks for reply.
One more question I don't have experience letters from some employers but still may I mention those in my application, although, I am not considering those in my points or may I write only those which I can proof to them for points.
Include all employers in last 10 years, no point in hiding info even if you do not have the reference letter.
Say in your application in 2nd stage to CHC that you can not present the reference letters and are not claiming points for those experiences