So, at first, they might tell you that the upgrade is not possible and you have to study the degree according to the preferences put by you in the application form. Still, I have seen students change their programs after getting admission into the DCP program. This also depends on how many students are waitlisted for the courses that you wish to go for. Try mailing the admission department about the issue and that you want to change your course so that your seat acceptance fee can be adjusted towards the course.