Switch to just CoursePress Pro

I wanted to install the CoursePress Pro and so decided to buy it. But looks like ended up buying the whole WPMU DEV package for 2 times the price. Now I don't know what to do about it. I dont want the whole WPMU DEV package right now and want only CoursePRess Pro. Please help me on it. How can I switch to onl y CoursePress Pro and get the remaining amount back. Thanks so much!