From the time stamp its 20 minutes after the guy started that he backed out, thats half the essay of within an hour. I would agree on him being a scammer if he doesn't compensate that in some way.
This was my thought exactly. Had I been the one to accept this, I would have started on it immediately and had it completed (along with all editing and proofreading) within 15 to 20 minutes. I would be very disappointed if he then, after all of that work, turned around and said it was no longer needed. It's not like I would have any other use for that work, and it would mean I took time away from my other work. As a result, I would not be willing to take the 25%. I could understand accepting this if you hadn't started, though.
Also, I would say that vitalemontea lucked out on this deal. Not to be too critical, but BitCoinUser123's posts here are grammatically incorrect and one would assume that an admissions essay would be looking for a more professionally written statement. In most cases I would not call someone out for this, but when it deals with areas where proper writing is important, it becomes a big deal.
Don't worry, BitCoinUser123. I still love you! <3.