I am applying for a study permit online and I am required to know the dates of my duration of study, (from, end) as well as my tuition.I'm doing a 4-year degree programme and starting in January. I, however, do not know the exact date my studies end or my exact tuition as it is calculated after I register for my courses. My acceptance letter does not give me an end date for the duration of my studies but gives an estimate for my tuition, how can I fill on this section of the form?