If they continue to do absolutely nothing to reform it might be effective to swamp them with service access requests. They'd have to respond to each of them within a month, if you have a record of your membership and they don't it would be clear they're inflating membership figures, if they have your data you can ask for it to be deleted which again impacts their membership figures and if they fail to comply they'd be fined to the point they'd be shut down and a phoenix trust (irony alert) could come in and do an actual job. Considering they take a month to get a 3 line statement out I think even 100 requests could be enough to finish them off.