Only care about money

As stated before - we cancelled our course with the college end of last year, after my last review I suddenly received an email from the college stating what they felt they deserved in monetary value - I disputed this and have heard nothing since. Now Im receiving emails with content and info for upcoming exams? Im obviously missing something - we cancelled the course, as we are not employed and yet you still sending info - do you expect to turn around and demand money for this too?