Truscience LLC review: they charged me for the packages, which I didn't want to get 1

I have filled the survey and the company Truscience LLC promised to send me two small gifts. I got the package and there were two bottles of Garcinia Cambogia. After that they took $189.99 from my account. If I wanted to get refund, I needed to return the package. I didn’t return it on the agreed time, so I lost refund. Next month, they again took the same charge from me. How to stop these people…