Planet Fitness: ************ of Minors - Spamming Threats

It's so easy to dupe the population into signing up for a gym contract by forcing flyers into car windows at the traffic lights and promising a healthy environment, friendly staff, etc., etc. But just try to cancel a contract, or let alone miss a payment or two, and they will spam your school kid with threats of being handed over. I received screenshots from my daughter, with intimidating threats of ITC Listing. Not one or two... up to 10 SMS's per minute for almost half an hour. How dare they intimidate a minor like that? I am appalled. If there is a plausible reason for this spamming, I would like an explanation.