Yeah, please keep the language ‘family-friendly’. I’ve also removed the link to the item as it’s against the rules to call out specific items or authors.
Have you asked for support through the correct channel… the ticketing system on the ‘support’ tab of the item page? The author should provide support for supported issues, and if he doesn’t then you should contact support, as I’m pretty sure refusing support would be reasonable grounds for a refund. Also, there’s nothing stopping you from commenting on the item page if you’d like. The author cannot remove comments from there, although extremely negative, unfounded comments, or profane comments might be removed by Envato.
One thing to note, the item has had several reviews, which have been overwhelmingly positive, with a 5 star rating overall. Although I’m not doubting that you’re experiencing a problem, the evidence would suggest that yours might be an isolated issue, rather than indicative of the overall quality of the item.
I recommend contacting the author through his support system, and you could always try joining the facebook group again… you may have been removed in error. But keep in mind that the Facebook group isn’t the official place to get support, otherwise it would link to it on the support page.
Thanks!