For that kind of money it is worth going to court. Hopefully you have a version of Small Claims Court down there, where you can represent yourself. We have that here, has a limit of 50K, no punitive damages, but you can do it yourself, you ca nalso use a lawyer but that kind of defeats the purpose of the small claims system, and the court tends to lean towards the consumer. When you win, post the court specifics and details, so State, city, court date, plaintiff and respondent etc so others can site it as a precedent.
If you can find a bunch of people with the same issue, perhaps a class action suit. Not fast but better than bending over.