Re downloadassist.com, unrestricteddownloads.com and all these .ru sites seems to be operated by an organization from Montreal
I had the same bad experience on January 24th 2011 with a first purchase of 6, 87 $ US. On February 1st, they charged a 49, 95 $ US fee for life access to a miserable site offering... nothing valuable. I phoned the support line to be told they make no refund; they told me they won't take any more payment. These guys are based in MONTREAL, Canada, using different domain names from several countries, for more than 2 years now! How to stop them? Everybody should complain to their credit car holder, even if they can't block payments to these untrustworthy people. If your personal lost is still relatively low, their profits must be amazing with the complicity of banks credit cards. This fraud covers the entire planet.