I was employed at a company once in 2010 for 7 months and once in 2015 for just over a year. I have got a reference letter from them stating my position, hours worked per week, and earnings for each period separately (although everything except earnings were the same). Since my position was the same for both periods, my duties and responsibilities have been mentioned only once at the end of the letter. In my document check list I have to upload two reference letters for these two periods. Is that OK if I upload the same letter twice? By the way, I am getting points for only one year of work experience so even if the first period (7 months) is not considered, my points would not change.