Kopatheme Author is cheating people and eating money

I had purchased a html first for autowork and then theme from kopatheme . They are pathetic in support and desiring unrealistic money for the bugs in their themes . You can see the complete follow up and messages in comments section in autoworke theme marketplace of envato.

See here :- http://themeforest.net/item/autowork-car-and-vehicle-wordpress-theme/13750419

in between i spoken to them via webchat after 6 days of followup when even they show online . Used there ticket system for 18 days . no result . had confirmed from them so many things before purchase and I was the first purchaser of the theme .

They are truly non professional and eating people money . I need refund of the theme and html money as that is of no use . They are not even replying for the same .

I trust envato . give me a fare advice on this and help me to get my money back from this money eater .

Kopatheme website - www.kopatheme.com

Thanks ,