I got the donation page at the bottom of his email too. I think that might just be his e-mail "signature" or something. I checked out the page, and on the donation page he does state that his services are "FREE" again. So I'm not sure what to think. It's interesting that he's responded to you though, because I haven't heard a response from him at all since his first email to me, and I have sent a follow-up email, still with no response :(
Here's the link to his donation page that I got through his email
http://www.indiegogo.com/projects/153135 .
I really don't know what to think. Nothing in his email led me to believe he was a scam artist, he didn't request that I send him anything in the mail, and he didn't tell me I needed to donate to have the spell cast... But the bottom line is he hasn't responded to me. Maybe someone else can try him out? See if he will actually cast a spell for you?