SonderMind review: Your deceptive, predatory, fraudulent, billing practices

I started therapy with someone who uses your "service". To my everlasting regret, I gave you my credit card number. You told me you would bill Medicare and my Medicare supplement insurance. This was a bald-faced lie. You never billed Medicare or my supplement policy, you just keep billing me, claiming that you are out of my policy network. MY POLICY DOES NOT HAVE A NETWORK. HOW CAN YOU BE OUT OF SOMETHING THAT DOES NOT EXIST?
Congratulations, I dumped my therapist because of you and I told her why. Good luck getting new business.