Come on. If someone donates to any organization do they ever have a right to ask for thier money back. Lets say I donated some money to Greenpeace but then they do some political move that I do not agree with, first of all I am not going to even consider asking for it back, but secondly if I did they would be like, "no way! It was a donation, you cant get it back! We already spent it!" I do not think there is any legal grounds to demand a donation back in any situation.
Anyway, if you do not want our money that is fine with me. It will go to Yamato who is paying you, right?