@regina I studied two separate 1 year programs and attached all my docs in one PDF file. I had also written a separate LOE with all clear details, but I don't think they read any of it. The agent only saw the first page and hadn't scrolled down. When I told her its all together she scrolled down and said OK. She said a note has been made for the officer and will take up to 3 months, for a decision to be made. Additionally she said, 'meanwhile use your 1 year permit till you hear back'. Most of my friends faced the same situation and received the corrected permit in 3 months time. I hope the process is quicker now!
I feel the application for 1+1 students should have 2 separate slots to upload documents to make it easier for both the applicant as well as the immigration officer!