If you uploaded the head and it was against rules in anyway(i.e got hat on/staff head etc) and its accidentally accepted then you can only get the half refund[because it already tells on upload page what shouldn't be on it etc]
(i guess just wait on the ticket report maybe higher will allow this once) but that is how it works for future reference. staff have to go by rules aswell.
at the money comment you could say that for alot of things (buying a gun and it getting nerfed etc.. just the way it goes sometimes)

P.s could you post head here? so i can see/show few frames or something.