Then also file a complaint with the attorney general of a state in the US and the Better Business Bureau. Also write an honest Yelp review (make it fair and truthful but not slanted as you don't want to be sued over libel). All of those things matter a lot to businesses, in addition to their standing with credit card companies and banks.
The BBB are close to a scam themselves, but it might be worth contacting the FTC - they tend to show an interest in this kind of thing and can lay down some serious financial hurt themselves.
Although I think the BBB is not a scam, there are still many other routes to take. There's always a potential for a class-action law suit. Some law firms specialize in that and work cases only taking money from any final winnings in court.
And the attorneys general are usually happy to hear any complaints. While there's often not immediate results or consequences, having made an official complaint helps those who are seeking to apply some rule of law via the justice system.
