We have a number of class actions. Quebec is actually the jurisdiction in Canada that is the furthest ahead with class actions. A number of consumers have achieved remedies through that.
Class actions are in fact specifically designed to empower consumers to make it easier for consumers to stop bad practices and get redress, first of all, by allowing them to obtain legal representation without cost and to be represented automatically as part of the class, even if they make no effort to initially obtain it.
But all you need is one person who represents a whole class of consumers who were subjected to the illegal practice to take the matter to court and retain a class action lawyer. The lawyers will generally take responsibility for the case and will take it forward, typically on a contingency fee basis, and proceed with it in that way. It in fact removes the burden from the individual consumer and obtains redress for the wide class of consumers.