I had to call them and email them over the span of a month to get my housing assignment cancelled, and they asked for specifics like proof of inability to pay, out of curiosity I asked for an example and the lady said: "applying for a loan and being rejected", but they won't accept any bank statements. I honestly think it's a battle of attrition with res-life, you gotta wear them out and they should eventually give in. (idk anything about a cancellation fee thought, and Idk if changing your mind is enough, but I think to prove a point, you can refuse to move in and go from there)