Funnily enough, after the first time I tried to get the money, I was troubled with unpleasant intrusive thoughts. In my mind, I linked them with the 'magic', so that was another reason I stopped.
The second time, instead of commanding the spirit, I requested. Who knows? I didn't get any unpleasant effects though.
I am not claiming anything here. Both the negative and the lack of negative thoughts could have been entirely to do with the rest of my life.