Couldn't get the code to work on my site. No big deal, it happens. I requested a refund and the author was overtly hostile towards me. I explained it wasn't a personal attack and I'm willing to try other ways. If we could get the code to work I would have happily changed my review. Even if it couldn't, I would because he was willing to help. I then went on holiday with family for Thanksgiving, I returned to an even more hostile email from him, denying my request. I tried the code with a different template, still no luck.
I plan on escalating my request to the Envato admins. I've had many very good interactions with developers on this site, sad to say this was far from one of them. I'll be avoiding this developer in the future.