In my contract, there is not even a word about cancellation/dropping the training. From this point of view, there is no problem. You are right about the references- I am not sure about this. It is true that there is possibly a sort of a ''less trust'' approach from the view of future employer. I hate being in this situation. Before I entered the integrated course, there were no warnings from anybody about my school, everything seemed to work properly. The true is, that there is not enough instructors and airplanes to make the ATPL training fluent and efficient. Otherwise, I could finish all the training one year ago...