I signed up for what seemed to be a free trial, but instead of that I was charged $79.99. Tone De-Tox customer support seems to ignore all my calls now and I still wasn’t able to get a refund.

File a complaint with your credit card company and dispute the charge. They'll check it out and most likely get it dismissed. These scammers are just throwing things at the wall to see what will stick. They won't put a fight. Good luck