I understand the doubt, I can not say anything other than my experience. The purchase was on December 31, 2013 and before saying anything on this forum I've tried everything. Now, I need to say jeevanos replied me 2 hours ago. Said that he tried to send the files to the email with which I am registered on his website but this email was wrong. First, the email is fine, it received there confirmation of the purchase.
Secondly, in my private message I had not told him what my email is. Anyway, he did not respond the message I left him on his own website, end did not answer to paypal. He only answared after this post.
If this person finally gives me the module that I bought, or back the money, I will return to this post to tell.