I agree, I really thought it's just an educational trajectory and nothing of big deal to get a study visa. I believed I ll get it. A random guy who passed entrance examinations for an advanced one year certificate program from BCIT, went to Russia, got all As in first year, and things like that... It s like I am sure I ll succeed there in my studies, I have home ownership, I explained why I went to Russia, I am only looking for education, And, I study at 3rd best university in Russia, my English level is C2, I found it strange to get my application refused, but in any case, I should have thought more carefully before applying! Thanks to all of you for your interaction, and best of luck to you!