I have deleted my Soundcloud account just yesterday. I had some mashups (combinations of multiple songs into one) for years posted there and Soundcloud removed

I have deleted my Soundcloud account just yesterday. I had some mashups (combinations of multiple songs into one) for years posted there and Soundcloud removed three of them in a single day. Although I don't have a written permission to use them, I think that this is a creative process that falls into fair use as long as I'm not trying to make any profit with it. Unfortunately, Soundcloud disagrees. I deleted my Soundcloud profile and every track from it. It was kind of a rage response, but it had to be done.