honest.com / Don't subscribe –waste of money

I ordered some samples of baby production from the company www.honest.com. I was really shocked, when in the end of the month it turned out that these jerks started to take money from me. They took money for the order, but later they charged me for something else. I have no idea for what really. I sent emails, but these jerks didn’t reply. I wonder if there are people, who face the same problems. What measures do you take in order to stop it?