There have been many posts on this company and I would suggest you have a read of the link below. The second link tells you how these charges work and how to stop them from happening again.
Hi Van1234 - thanks for reaching out! I'd recommend to ensure you reply STOP back to the 19xx number the SMS was sent from and also contacting the content provider directly on the details provided. If you need a hand with this, please send us a private message with your mobile number, full name and DOB for ID and we can assist.